yes I have lots in stock, I`m good on 231 or 241 kits in 23,31 and 32 spline.
and have the Ford BW1350/54 doublers.
Thanks
Duffy
D.D.Machine
(360)649-4465

Payment sent :D

Got my kit yesterday :smokin:, now that's a quick delivery, Thanks Duffy.

Helps that I'm in the same state.

Anyone have any problems mating a 231 doubler flipped to a dodge nv4500, then to a ford 205? Is there interferance with the shift rail in the 205 with the flipped doubler setup?

Anyone have a link to a build like this or some pics? It would be greatly appreciated!





Also, I sent a pm to ya Duffy.

yes I have lots in stock, I`m good on 231 or 241 kits in 23,31 and 32 spline.
and have the Ford BW1350/54 doublers.

Really? Where is mine?


Got my kit yesterday :smokin:, now that's a quick delivery, Thanks Duffy.
Helps that I'm in the same state.

Must be nice.

I ordered & paid for a NP241/205 kit on 5/1/10.
He said it would ship that week.
Still haven't gotten it, haven't heard from him either (I've left a message every other day for the last week & a half). :shaking:

So you're the one that filled up his voicemail box. :flipoff2:

Anyways, Duffy answer your phone I want to place an order. :D

Mochamike, I`m not at the shop but I will look up your order in the morning and see whats up with it, I thought all the orders have been shipped .

Thanks.

Send me a PM or give me a call to let me know the status... (Thats all I've been asking about for the last 1+ week of messages).

I have a Dana 300, mated to a nv3550, passenger side drop, What spline np231 would I need to mate to my setup? How much does the kit cost shipped to 33172, regards

Duffy, this's Nate.. I called an talked to ya like an hour awhile back about this setup and some other stuff..

but hey im about ready for one of these kits.. i'll call ya monday.. PM me your paypal adress please..

EDIT: nevermind, i see its on the first post.. thanks buddy, i'll give ya a shout..

How much for a 231/300 kit shipped to 85215? And do you have any in stock?

yes the 231/300 kits are good in stock. there $499 and a set $25 shipping in the US
Thanks
Duffy
D.D.Machine
(360)649-4465

Mine showed up today.

I have a few questions though...

Mine is different than the others I've seen... I'm guessing it's because I got the 241/205 adapter (vs 231/231 or 300/205).

The first thing I noticed is the block of block isn't drilled or tapped.
Also, it will have to be cut into 2 pieces because of the curve of the adapter.
It also has 4 oil drain holes with set screws :).

However, where do each of these bolts go?
There are 3 allen heads (1 goes to the shift rail shaft... I get that), but what about the other 2?

There are 6 bolts & 1 allen head (all 7/16" I think) which goes where?
5 of the bolts have 1/4" of non-thread near the head...
All 7 holes on my case are threaded, while 4 are threaded & 3 are not on the adapter.

Am I supposed to drill out all the holes on the case?

Is there a write up for my kind of case?

I ordered my 231/300 with twin sticks on the 27th. You said it would ship that day. That is why I ordered it. I am moving to Fort Benning on Tuesday. I have my Jeep all tore apart and would really like to get the doubler together so I can weld axles and get the drivelines done.

It has been a week and I have called every day. Atleast answer or return my calls man. I called the credit card company but it takes up to two months to dispute an item. That isn't going to help my project. I am about to drive up to Washington and knock on your door!

Damn it man, just call me back!

He is hard to get a hold of, but he will take care of you.
Just keep trying, or PM with another address.

When I posted my questions last week he called me back that night.

He explained that there were extra parts because the parts bag go with several kits, while some holes were tapped & some were not to deal with the different variations of tcase.

I drilled out 4 of the holes on my case, tossed 2 screws, and everything became clear.

Why did you decide to go with DD? Just curious.

It was held up a little bit during the long holiday weekend. Duffy didn't ship it on the 27th as promised. He sent it 3 days later. This was a little bit of a crucial issue for me.

Good guy when he answers his phone. I must say the packing was impeccable and the craftsmanship appears to be second to none.

I am considering this as an option for my build, but I was wondering about how it would hold up.

I am only running a 4.0L jeep engine w/ an AW4 tranny but will be running 40 tires. Has anyone had any experience with this kind of set up?

I got a little concerned right about the time I got a good deal on a set of 40 inch pro comps. The DD kit seems like it will hold whatever you throw at it. My concern was more on the output shaft of the dana 300. I opted to upgrade to the 32 spline output from partsmike. I figured it would be $370 well spent. It is hard to know where to stop buying parts when you are changing so many things at the same time. It really creates quite a chain reaction every day of my build.

Why did you decide to go with DD? Just curious.

I don't think anyone else makes a 241/205 adapter.

Duffy,
I'm having a few more issues.
I finally got around to installing the guts & ran into a few issues:

(I'm doing an NP241 to a Ford NP205...flipped).

I think my spud/adapter shaft is too short.
When I install it into the 241, it is pretty much flush with the plate on the NP241.

The 205 input sticks out about 3/4" (past the clocking plate)... So out of 1.75" of splines on the shaft, only .75 engage.

Not only that, the spud shaft can float/slide forward inside the NP205 about another 2" (so that the shaft would leave the needle bearings).
The needle bearings inside the 241 (holding the spud shaft) are just under 1".

Is there some sort of retainer for the spud shaft?

Duffy & I talked (extensively today).

Bottom line the shaft needs to be shimmed on both ends.
He stated that because of the spline type/style & design, the needle bearings aren't very critical. Also the NP205 input is designed extra deep & only 3/4"-1" of spline engagement is required on that end (hence the shims).

My one stick seems very loose. I have not run this setup so I cannot tell you if it is the front or rear stick, but it is the longer one on the linkage that goes under the other one. I am not sure if my case was binding and I forced the shifter to create the loose spot between the Allen screw and the rod it is on. I cannot get it to tighten up at all. I cannot tack it or I will not be able to get the shifters off, or be able to get the doubler out... Wait, maybe I can get the whole thing out without taking the shifter off. I will check tomorrow. This doesn't seem like the best way to go though!

Duffy & I talked (extensively today).

Bottom line the shaft needs to be shimmed on both ends.
He stated that because of the spline type/style & design, the needle bearings aren't very critical. Also the NP205 input is designed extra deep & only 3/4"-1" of spline engagement is required on that end (hence the shims).

Did the shims come with the kit? Did you get it put together yet?

No, the kit doesn't come with spacers/shims.

However, I found the perfect solution.
Using the old output shaft & a chop saw, I made my own...

http://i78.photobucket.com/albums/j95/mochamike/Scout/NP205/IMG_1224.jpg

(If I missed the discussion somewhere I apologize;)

Did you/someone come up with a good solution for finding the clearance to utilize the 205's OEM shift rails?

No, the kit doesn't come with spacers/shims.

However, I found the perfect solution.
Using the old output shaft & a chop saw, I made my own...

http://i78.photobucket.com/albums/j95/mochamike/Scout/NP205/IMG_1224.jpg

(If I missed the discussion somewhere I apologize;)

Did you/someone come up with a good solution for finding the clearance to utilize the 205's OEM shift rails?

Yep (http://www.pirate4x4.com/forum/showthread.php?t=878305&highlight=) :bounce2:

So this 241-205 kit is available? i assume @ 520 shipped?

yes I have the 241 drivers drop kits in stock... 23,31 or 32 spline shafts for them. they run $524 with shipping.
Thanks
Duffy
D.D.Machine
(360)649-4465

do you have a kit for a 700R4 to 231 to NP205 driver drop? If so, please let me know the price and shipping Thanks,

John

Duffy,
I'm having a few more issues.
I finally got around to installing the guts & ran into a few issues:

(I'm doing an NP241 to a Ford NP205...flipped).

I think my spud/adapter shaft is too short.
When I install it into the 241, it is pretty much flush with the plate on the NP241.

The 205 input sticks out about 3/4" (past the clocking plate)... So out of 1.75" of splines on the shaft, only .75 engage.

Not only that, the spud shaft can float/slide forward inside the NP205 about another 2" (so that the shaft would leave the needle bearings).
The needle bearings inside the 241 (holding the spud shaft) are just under 1".

Is there some sort of retainer for the spud shaft?


i wonder if a np231 ford 205 would have the same problem

i wonder if a np231 ford 205 would have the same problem

I'm doing a np231c to ford np205 and it has the same problem. I had to make a shim out of some teflon to cheat the 231's needle bearings a little, the shaft lacks full engagement of the bearings by about 1/8". I also had to shim the 205 side so the shaft wouldn't slide into the 205 and out of the 231's needle bearings. It ended up with about 1 3/8" engagement in the 205's splines.

I like duffy's stuff but I sure wish that shaft was an inch to an inch and a half longer, even if I had to pay more!!!

this is just me thinking out loud do you guys think a spring inside the 205 splines would help keep it from walking out of the 231's bearings

Duffy told me that the needle bearings in the 231 or 241 are pretty much un-needed with the doubler.

The needle bearings are designed to hold the shaft in place from side load caused by the 4x4 chain & driveshaft output (both of which are removed).

The number of splines & their pitch, which engage on the 231/241 & the 2nd case keeps the shaft engaged.

Shimming the shaft, so it doesn't walk forward or back is the important part.

IIRC Duffy said that on the output/second case, only like .75" engagement is required by factory specs. So anything more than that is stronger than stock/normal.

quote on a 231/300 to 60060 thanks

Still waiting for a reply on the NP231 to Ford NP205 adapter. Strength? any concerns? other than what's been mentioned above? Any shifters out there to run the 231?

Thanks,:beer:
Dos Bronco's

the 231 to np-205 sets ups have been working out realy good, I have been selling the kits for years and no one has busted a shaft yet.

the shafts are made for the T cases with a 2.1" stick out on the input, like the 241, Dana 300, ETC so all you want to do is shim them so they fit up in the 205`s , one does not need to use the back needle bearing in the crawl box with the 30* spline the shaft is self centering. the bearing was put there by NVP so it could support the side load put on the main shaft do to the chain.
but with the chain no longer there it has no side load.

Think of it as a semi float axle, the splines have a huge load on them and in this setup there is about 3 lbs MAX

Thanks
Duffy
D.D.Machine
(360)649-4465

All the kits run $499 and a set $25 shipping in the US

Duffy,
Thanks for that info, also is it clockable? I'd like to flatten the 205 out as much as possible.

Thanks,

Dos Bronco's
San Antonio, Tejas:beer::beer:

yes you can clock it every 6* in a full 360*
Thanks
Duffy
D.D.Machine
(360)649-4465

Excellent, I'll be placing an order with within the next week or so.

Thanks,
Dos Bronco's:beer:

Just checked Ebay for the NP231/D300 kits with no success.

Are you currently out of stock?

been hammering on my 231/205 for year and half without issues....love it!

there good in stock.
Thanks
Duffy
D.D.Machine
(360)649-4465

Pm sent!!

Duffy, any chance you can make a longer 23sp. NP231 input shaft? Longer by 1 1/2"? I am using your doubler setup with (original plan 465/D300...now changed to a 465/231/D300) an AA SM465 to Dana 300 adapter and the 465 output shaft is a 1/2" inside the adapter and the stick out on the NP231 input is 1 3/8"...netting only about 3/4" of spline engagement. I've honestly only taken a quick look at it the other day. I think more engagement would make me feel a bit more comfortable using the power of a SBC383/465. Thanks for any info. John

Duffy, I placed an order for a box4rocks and flipped dana300 shifters, only got the box4rocks. Have left voicemails, called many times. PM me.

duffy, i've been waiting for my flipped 300 shifters as well, since april. i've been trying to contact you privately and i'm not getting any response. i paid for a product i'd like to use at some point.

Talked to Duffy last night & ordered a second 231/D300 Box4roks kit, set of D300 twin flip shifters, and a shifter boot - as always he's one heck of a nice guy, willing to answer any questions you have, and a bit of talker once you get him on one of the many subjects he's well versed in. :laughing:

He also told me he just finished another batch of flip shifters if your one of the guys waiting on a set.


I've had the best luck contacting him through the ask the seller link on his Ebay auctions - I just tell him what I'm looking for, leave my number, then be patient for a few days. So far, I've had zero issues doing buisness with D.D. Machine. :D

I replaced the 231 in my TJ with a 2 speed Stak, can I use this kit and bolt the 231 up to the Stak?

PM sent on a 231/231 kit.

pice for adapter 231 YJ94 -300 shipping to mcallen tx

price and wait time on a chevy 231(27 spline) to ford 205(31 spline) kit thanks

Is duffy still making kits? Would like a 231/300 doubler...are there any more of these kits on the market?

I used to see them in his E-bay store from time to time.

how do i find his ebay store? im really lame at the internet

my Ebay name is 4x4machineshop or you can phone my cell at (360)649-4465

I have all the 231, 241 and ford 1350/54 kits in stock.
Thanks
Duffy

duffy....i never thanked you for your great product and great service. i installed your 231/300 kit about 2.5 years ago. this kit is the shit. simple, easy and effective. i've never had a problem with it.

i ran two barbed fittings on the front half with clear oil-resistant hose to moniter the oil level in the front half. never leaked a drop. still looks good.

i've let my jeep crawl river rock at idle. took forever, but it never stopped. (i was outside, taking a leak...)

my Ebay name is 4x4machineshop or you can phone my cell at (360)649-4465

I have all the 231, 241 and ford 1350/54 kits in stock.
Thanks
Duffy

I looked all over ebay for your stuff Duffy. Maybe I wasnt looking in the right place but all the searches brought back nothing for your set ups.

I looked all over ebay for your stuff Duffy. Maybe I wasnt looking in the right place but all the searches brought back nothing for your set ups.

http://myworld.ebay.com/ebaymotors/4x4machineshop/

http://motors.shop.ebay.com/4x4machineshop/m.html

http://cgi.ebay.com/ebaymotors/doubler-crawlbox-NP-231-box4rocks-kit-jeep-Klune-V-/160519437071?pt=Motors_Car_Truck_Parts_Accessories&hash=item255fb43b0f#ht_1193wt_1167

Thanks Mike. Thats what I needed...

alll orders have been sent , Thanks

Price and wait time for a 231/300 doubler kit.

there good in stock and run $519 with shipping
Thanks
Duffy
D.D.Machine
(360)649-4465

I have a 233D in my dakota and would like to do a doubler, can i use a 231 and stack my 233D?

yes you can run a 231 as the crawl box and the 233 as your T case.
Thanks
Duffy
D.D.Machine
(360)649-4465

Thanks for the orders

I have a 231 D HD 23 spline in a dodge durango that I want to convert to the crawl box....Behind the 231 will be a 241 C 27 Spline driver drop.


Which kit do i need..... I am ready to order.

Thanks Steve Maxfield

steve the 231 kits I make will fit the dodge 231 . but I don`t have any 27 spline shafts. I do have a good stock of 23 and 32 spline shafts so you would need to swap out the input for the 241 .
Thanks
Duffy
D.D.Machine
(360)649-4465

Duffy :

I have located a 32 spline input..... would like to order the kit...

Give me a call 801-803-3289

Thanks Steve

just recently ordered one of your kits off Ebay
alcaustinc

ordered my 231/300 doubler today. duffy is great to deal with and extremely knowledgable i highly recommend him.

Hey Duffy, I ordered off ebay on Wednesday, Feb 23. The funds have come out of my acct, but I haven't heard anything back on shipping, etc. Can you give me an updated on my order? It was under the screen name hemi_powered4x4

Thanks,
G

Disregard the last message. I got it in the mail today. Thanks! Looking forward to my new mods!

I'm interested in one. I left a phone message also. Thanks

This guy is hard to get ahold of.

I need a quote on a 23 spline 231/300 shipped to 60060. Thanks

pm me a price on a dana 300 32 spline input shaft and a 32 spline rear output shaft shipped to 40047
Thank
Bryan

do you have a kit for passenger side drop 241 205 doubler i have seen stuff on drivers drop but not passenger and also would i have to drill the 205 for the shift rail if its passenger drop? thanks

What ever happened to a 1350/D300 Doubler setup? Anything come out of that?

This guy is hard to get ahold of.

Profile shows he hasnt logged in since 2/10

I need a 241 to race track 205 doubler adapter

I've been looking at getting one of these, he has them in his Ebay store with a current auction runnning.

Maybe that's the best way if he never logs onto here. :confused:

I've been looking at getting one of these, he has them in his Ebay store with a current auction runnning.

Maybe that's the best way if he never logs onto here. :confused:

That's where I bought mine but unless he changed it he only sells the 23spline output on ebay.

I have an 89 xj with a np242, can I use this kit to attach an np231 reduction housing to it?

Question how do u get a hold of Duffy??

I also need a 231/300 kit, give me call at 613 551 0149 Justin

Well, switched to a 241 box to run in front of my 205. Need a price and availability and shipped to 78209. Ready to get-r-done and back in action.

John Monroe
Dos Bronco's
San Antonio, Tejas 78209

Same here, need a 241 to 205. 31 spline. They available?

Duffy is still making the kits. Purchased a kit a few months ago, currently dialing in the shifters. I clocked my 231 120 degrees from stock. It is pretty amazing what can be done if your dangerous with tools. If you want to get in touch with him. You just have to call him directly. Call in the later part of the day and leave a message. He is hard to get in touch with but, I am a fan of his 231 to 205 driver drop kit. I have heard from duffy about what happened between him and camo. That is between them. I can see why Duffy doesnt mess with this BBS anymore. In that particular situation, I probably would do the same.
You most likely will not get any reply from Duffy on this board. I think he is still on NAXJA and a few others if he is not too busy.

He's tough to get ahold of, but overall a super guy - He probably spent an hour answering all my questions, after I waited a while to get the chance to talk to him.

I finally got ahold of him by messaging him my phone number through one of his Ebay ad's & then HE called ME (At about 9pm too if I recall since's he's on the west coast).


BTW: the reason he still posts on here occasionally is for those of us that use the forum, even though he wants nothing to do with Pirate, he doesn't want to leave us hanging.



As for dude that sold his stuff before the other setup was available, knowing Duffy the little bit I do - I gotta imagine he feels bad that he made a decision that negatively affected you - but this is his livelyhood, and when in buisness sometimes you have to make hard decisions that don't always work out 100% for everyone involved at that time (the car manufacturers do this ALL THE TIME!!)

And from the looks of the setup you have there, that company you used could perhaps fill the nitch for kit models that are desired which Duffy doesn't have time to produce.

I have a new load of 23 spline shafts coming back this friday, so I can start shipping out the 231/ D300 kits early next week.
Thanks
Duffy
D.D.Machine
(360)649-4465

I just got the 23 spline shafts back from heat treating.
I`m good in stock on 231 and 241 kits and have a good stock on the 23 , 31 and 32 spline shafts.

I also have a good stock of the 1356 to 1356 kits and the 1350/54 to 1350/54 kits in stock

Full kits run $499 and shafts only run $249

Thanks
Duffy
D.D.Machine
(360)649-4465

Shout out to Duffy. After all this previous hupla aobut his service and not answering . I called today ordered up a 241/305 kit and shot the poop with him for a while and was very impressed with his background and service. For those here on the list that are trying highjack and sabotage him and his product shame on you. Go start another list of what your using and leave him along. He's a small business and runs a lot of machines and can't to you right away because he's trying o put products together, so leave a message and he'll call you back. Also Figure it out for yourself and of up your stuck then call and ask question as to how it goes together, not bufoo it up on this list and blame him or do something stupid and still blame him. I feel confinident in his knowlegde and his willing to make things right if threre's a issue. Thanks Duffy. Looking forward to putting the driveline combo together.

I'm looking for some pictures if anyone has any of how they mated their NP241 drivers drop/NP205 drivers drop Ford transfer cases. I haven't made any cuts or yet, but I'm finding out that the adapter plate blocks the shift lever closet to the input shaft. I've tried rotating the adapter 360 degrees around the Ford case, but it still blocks the shifter. I'm assuming that I'll have to modify the adapter to get clearance, but would like to see what anyone who has this set has done to marry these two cases together with the shifter rod not blocked by the adapter.

Thanks,

Anyone? Anyone? Bueller? Please send pic's or information on how to get the 241/205 to clear each other for the shift rail.

Thanks,

Anyone? Anyone? Bueller? Please send pic's or information on how to get the 241/205 to clear each other for the shift rail.

Thanks,



http://www.pirate4x4.com/forum/showthread.php?t=878305&highlight=

Thanks, pic's make a world of difference. From what I saw in what pic's were available I'll have to do as what I expected and that is to rotate the 241 box and notch out a spot for the shift rail to clear. I really didn't understand what the guy in article/write up was doing when he was moving the shift rail, but I don't want to get into that much detail.

Thanks again for posting,

How about a 231c drivers drop to a 241d passenger drop? I can have both cases real cheap if you got what I need. Thanks :D

A 231 C to 241 D would be the same kit as the 231J to 231J of the 231J do dana 300.
Thanks
Duffy
D.d.Machine
(360)649-4465

I'm sure its already been covered, but how long in the unit?

we have a good stock of the 231 kits in 23, 31 and 32 spline . there is one 241 kit on the shelf and it can ship with what ever shaft you need.

good in stock on the 1350/1354 doubler kits to.

Thanks
Duffy
D.D.Machine
(360)649-4465

I wonder if I you can sell me only shafts for 231 to 231 23 spline and one more for 231 to 300 23 spline, if you can sell to me please give me price and payment way, i have pay pal and address of my child in usa.
Greetings.

I've been researching your doubler and am interested in buying one. my question is about the 241/300 kits. can i use an np241 rubitrac tcase so i would have the 4-1 and then doubled with a stock dana 300 or is the 241 your using different, cause i cant find anyone talking about a 4-1 241 only 2.72.
thanks for your time.

Thanks for the orders, I have a good stock of kits and shafts.
Full kits $499 and shafts only run $250

Thanks
Duffy
D.D.Machine
(360)649-4465

Hey Duffy, heard a rumor about you being able to flip a dana 300 and bolt it up to a 1354 manual shift t-case.....if so im ready now....:D

the market for a 1350/54 to dana 300 is just to small. I do have kits for 1350/54 to 1350/54 in stock .
Thanks
Duffy
D.D.Machine
(360)649-4465

Is there a particular 300 to look for, are all inputs the same? I know I'll need a 21 spline 231.

I need a price on a kit 231 to 300 shipped to 39272.

sleepsontoilet Is there a particular 300 to look for, are all inputs the same? I know I'll need a 21 spline 231.

You can run any of the jeep Dana 300`s , they all have 23 spline inputs.

************************************************** ******
HIGHEND2007 I need a price on a kit 231 to 300 shipped to 39272.

the kits run $499 and a set $15 shipping in the US.

Thanks
Duffy
D.D.Machine
(360)649-4465

I need a one kit and an extra shaft 231 to 300 23 spline, what would your best price for this? I have a workshop in Mexico and I will buy more of this.

Thanks.

Luis
Give me a call I can work with ya.
Thanks
Duffy
D.D.Machine
(360)649-4465

Hi:

I want to know if you sent me the parts, please send me the tracking number.

Thanks.

Luis
yes I got the order in early sunday and they shipped out monday. Thanks Duffy

Please: The tracking number?

Please: The tracking number?

there flat rate wich has no tracking number

I wanna put a 241 on a 300 pass drop. 23 spline. Is this possible? Can I get a quote?

yes I make kits to run a drivers drop 241 for the crawl box that you can use Dana 300

They are good in stock and run $499
Thanks
Duffy
D.D.Machine
(360)649-4465

[QUOTE=d.d.machine;13769579]yes I make kits to run a drivers drop 241 for the crawl box that you can use Dana 300

Ok, I need the 300 to drop to the passenger side, is that gonna work with a 241?

Stupid ? time again. My tranny is 21 spline, so obviously that's what I need. Can I buy any 231 as your shaft will replace it with the correct one, or I still need to find a 21 spline 231?

eezee
as long as the 241 case you make the doubler with is a drivers drop you can run the D300 as a pass or drivers drop.


************************************************** *******

sleepsontoilet
You would need a 21 spline np231 case you make the crawl box with.

************************************************** *******

Thanks
Duffy
D.D.Machine
(360)649-4465

Do you make a kit that I could make a doubler out of my 231 from my '93 4.0 5-speed and a 231 out of a 2.5 (4cyl) auto 97 tj?

Thanks so much for your help.

You can make a doubler out of ANY np-231 case as long as its a manual shift. Jeep, GM or dodge np-231 all had the same mounting setup were the plate bolt up.

Thanks
Duffy
D.D.Machine
(360)649-4465

Thanks for the orders

looking foward to reciving mine should could be haere tomorrow

Sent you a PM...




(Free Bump)

Looks like the planetary box can be flipped on most of these? Or are individuals making mods to make that happen?

Either case I need a 241/205 (ford driver drop)... are these in stock?

:smokin:

to flip a 241 you would need to enlarge two of the bolt holes , yes the 241 kits are good in stock.
Thanks
Duffy
D.D.Machine
(360)649-4465

Hey Dufffy!...I want to ad a doubler to my current set up....I'm running a 700r4 with an advanced adapters D300 kit to pass side, and want to go to a drivers side set up, so I will have to flip my 300, and i currently have a Northwest Fab cable twinstick as well...which is a better way to go, with a 231 or a 241 ....Thanks Doug

This is the first time I've ever posted. Looking at this thread got me interested again on a doubler setup. I have a xj, automtic with the 4.0 and np231. I also have a divorced 205 from a previous project, any chance i could mate these two together. Thinkin short shaft and put together with a ujoint? thanks for any suggestions.

I think the best way to go in a XJ is just use the 231 you have in there for a crawlbox and put a D300 on the back.
Thanks
Duffy
D.D.Machine
(360)649-4465

can your kit do drive drop 241 chev case to a chev T350 style 205?

Duffy, thanks for the input, just thought that maybe I could use your kit and that a yoke could be fitted as an output. That way I could have a short crawler box to mate the 205 with. Parts are hard to find here(P.R.) and getting a 300 is a loongshot. The 205 was supposed to be mated to another truck but it was totalled just shortly after I managed to finally find the 205. It's a shame to see my 205 just sitting there doing nothing.

duffy, I got a yj with ax15 tranny,can I use a 23 spline 241 pass drop and flip a 300 on it to driver drop with you 241 kit?

ttt

Sent ya a PM

duffy, I got a yj with ax15 tranny,can I use a 23 spline 241 pass drop and flip a 300 on it to driver drop with you 241 kit?

I have a similar question. I have a passenger drop NP241C. will the 241 kit work with this case of do I need to find a driver drop case to put a Dana 300 behind it?

i have a dana 300 with the jb conversions clocking kit installed , would this be any issue bolting up to your 231 box4rocks?

Im building and expo rig and was thinking about keeping my shift on the fly 208. can you do 241 drive drop to a clocked 208 pass drop?

How much extra is the shipping to Canada??

Ok how about a chev 241 drive drop to a dodge 241? The dodge case has fixed yoke on the rear output I would like to use that.

PM sent

Hey Duffy I need to order up the parts to make a NP231 crawl box prolly flipped to the passenger side or maybe 90* CW and Hang a D300 from the back of that, setup for drivers drop. shipped to 97232 Thanks

thanks for the orders.

hey left a voicmail today. looking to set up my chevy nv 4500 with a chevy ,241, 32 spline, and a ford 205. 31 spline i believe. its out of a 79 ford 3/4 ton. looking for a pm and about how long itll take turn around time. ive got the cases ready to go.
shipped to 95407
tom_pardini@yahoo.com

Can an electric shift 233 be converted to manual for use with this kit?

For reference I have a 4l60e with a 233c and I would like to double it to a dana 300.

it looks like the 233C shifter is in the front half of the case, so I don`t see why it would not work.
Thanks
Duffy
D.D.Machine
(360)649-4465

What's the best setup for a tj with a 5 speed and a 4.0?

The 231 with a d300 flipped is short and works out great.
Duffy
D.D.Machine
(360)649-4465

Pm sent

Looking for a Driver side drop 32spline 241 to 32 spline fig 8 205.

what do i need to do a 700r4 to 231 to 300?? is this strong enough for v8 power to tons and 40"tires???

pm me options and prices please??

frend needs a chevy 241 two a passenger drop 205 can you post pics of what he needs i will show him on this tread

looking for a price on a chevy 241 to dana 300 shaft sent to 97045

the 241 drivers drop kits run $499 and a set $25 shipping.
there good in stock.
Thanks
Duffy
D.D.Machine
(360)649-4465

i have the kit I just need the shaft

shafts run $250
thanks
Duffy
D.D.Machine
(360)649-4465

How about a TJ231/300 doubler with 300 flip and shifters for the 300 shipped to 40217

Thanks

231/231 complete kit.
what all do I need?
Shipped to 95407

whats best to upgrade on the 231 when doing this?
a 300 is to expensive at this time or i would do a 231/300

XJ CRAWL, look at the first post. Picture shows the kit as a 231/231.

You will need to change front and rear drive shafts, build new shift linkage, and modify the cross member or build a new one.

I would go for a slip yoke eliminator as short as you can get if you don't already have one .

Hey Duffy, I've looked hi and lo for a Dana 300 here in P.R. and it's just not happening. I did find out that I can probably get a Dana 20 off a '76 bronco. Is there a kit for this? I have an '87 xj with the 4.0 auto trans with a 231. If so do you also have a twin stick for the D20?

anybody run this on a dd? how's it all holding up?

are you gonna get a 4.1 for the jeep 231?

I have no plans of doing 4 to 1 kits for the 231 cases, they just don`t hold up.
if you want there is kits made for the D300 and they seem to hold up good.
Thanks
Duffy
D.D.Machine
(360)649-4465

what do i need to do a 700r4 to 231 to 300?? is this strong enough for v8 power to tons and 40"tires???

pm me options and prices please??

I'm in the same boat as him; Can you send me a PM, I am ready to purchase this kit.
Shipping to 76539

Mike