I know some of you have put D60's and 14 bolts in the back of a TJ and I am looking to do the same. However my concern is the pinion angle if I put in a low pinion diff. For those of you who have done this, what's your pinion angle and do you have any vibrations or driveshaft problems? Also if you have any good pics of the rear axle that would be great.

Thanks :p

i moved my rear axle back 9" and my D61 Low pinion angle is 15 degrees (241-JB-SYE, CV to the D61)

note you will have to relocate your gas tank to move your axle back more than 2"

FWIW on a D60, D61 the pinion is only 1 1/8" below the center of the axle (actually higher in relation than the D35) where the bad angles come into play is the length (about 6-7")

redrum, do you happen to know the dimesional difference between a D44 and the D60? The dims I am looking for is from center of tube to yoke and center of tube to back of diff cover. I currently have the 44 and when I put in the new axle it will stay where it located now but with a triangulated four link.

no my Jeep is at my shop and i am at work...

i can measure tonight (i have both (44,60))

Brian

Originally posted by redruM
no my Jeep is at my shop and i am at work...

i can measure tonight (i have both (44,60))

Brian

Thanks allot, that will help out a bunch.

Mark

I have a 14bolt in my TJ and have no problems with driveshaft angles, but I swapped in a D300.
Lots of pics of my junk at:
Phil's Mods (http://jeep-club.irtech.com/phils_mods)

Phil

Originally posted by 1TONTJ
I have a 14bolt in my TJ and have no problems with driveshaft angles, but I swapped in a D300.
Lots of pics of my junk at:
Phil's Mods (http://jeep-club.irtech.com/phils_mods)

Phil

Is a D300 about the same as an Atlas as far as the rear output dimensions? The reason for the initial thread is I want to put a low pinion D60 in the back of my TJ. I have the NP231 with AA slipe yoke with a cv shaft but don't know is this would be a good idea with the low pinion 60.

I'm not sure what you mean by rear output shaft dimensions? If you mean "overall length of the tcase" then it is shorter then an atlas (thus allowing for an even long driveshaft).
If you are talking about the dimensions and spline count of the rear output shaft then mine is the same as the atlas - but that is because I put a HD rear output kit on it (and 4to1 gears too)

D300 with 4to1 and HD rear output was less than half the cost of an atlas too.

Oh, and with the D300, you can then use the much more common passsengers side drop D60's.

If you have any more questions let me know.

HTH,

Phil

Phil, you figured out what I was trying to ask about the difference between the size of the cases. It would be nice to find someone who has the exact setup I want in mine to get an onest answer on weather this works or not. Thanks for info

So what exactly are you looking to do? 14 bolt? 60? D300? Atlas?
Extended wheel base (and gas tank moved)? Stock wheelbase?

You need to specify exactly what you want to do if you want to find someone with the exact setup as you say.

Phil

Good call, I am a little off the ball this week. What I have right now is a NP231 with a AA SYE and a D44 rear axle. I want to replace the D44 with a low pinion D60. The axle will be moved back 1" from factory (just enough to clear the tank). At the same time I am going to triangulate the rear upper arms an trash the trac-bar, this has nothing to do with the axle swap just thought I would throw it in. My concern is the angle and lenght of the driveshaft.

I have been trying to find out what the dimensional difference is between the 44 and the 60 but no luck. If I remember right the pinion on the 60 is a little higher than a 44 which will help a little. I don't know wht the length difference is.

I don't know if this makes any more sense or if you are as confussed as I am.

So what you are saying is that you want to run a low pinion D60 rear with an np231 in a TJ? Better call Jess for the driveshaft, that is going to be high angle...

Phil

Originally posted by 1TONTJ
So what you are saying is that you want to run a low pinion D60 rear with an np231 in a TJ? Better call Jess for the driveshaft, that is going to be high angle...

Phil

Exactly!!!!

i dont see how a d300 would be cheaper then a atlas:confused:
especially installing it in a tj...
d300-150$
rebuild it-100$
clocking ringand flip kit-800$
4-1low-600$
twin shifters-75$


how much is that in total...1725$plus all the s/h for parts
where an atlas is the same price well even cheaper if you know someone to get you cost on it:flipoff2:

plus then you have to run chevy crap no high pinion front so yur better of with an atlas...
in my own opinion

Originally posted by tj7
i dont see how a d300 would be cheaper then a atlas:confused:
especially installing it in a tj...
d300-150$
rebuild it-100$
clocking ringand flip kit-800$
4-1low-600$
twin shifters-75$


how much is that in total...1725$plus all the s/h for parts
where an atlas is the same price well even cheaper if you know someone to get you cost on it:flipoff2:

plus then you have to run chevy crap no high pinion front so yur better of with an atlas...
in my own opinion

You have a couple contradictions in your post man. The twin sticks come with the flip kit. You don't run Chevy crap with the flip kit.

okay sorry about the shifters the flip kit isnt totally full proof as there needs alot of modifications for the oiling still the atlas is a better set-up....

Originally posted by tj7
i dont see how a d300 would be cheaper then a atlas:confused:
especially installing it in a tj...
d300-150$
rebuild it-100$
clocking ringand flip kit-800$
4-1low-600$
twin shifters-75$


how much is that in total...1725$plus all the s/h for parts
where an atlas is the same price well even cheaper if you know someone to get you cost on it:flipoff2:

plus then you have to run chevy crap no high pinion front so yur better of with an atlas...
in my own opinion

You didn't read Phil's message :flipoff2: :flipoff2:
He is using a passenger side drop front dana 60, so there is no flip kit cost. It's not that hard to switch from a driver side to a passenger side drop, if you really want too.

no its not hard at all but you are not getting a high pinion yes you will be getting 35 spline inner and outter but i rather have the hp....

Why would the stronger R&P matter much with a dana 60 in a Jeep? Most people survive just fine with a low pinion dana 30. I'm sure the low pinion would be plenty strong. It's not like you need the HP for driveline angle on the front, there's plenty of distance to make that up.

Anyway, what's the diff in $$ of a HP ford front vs a low pinion chevy? I'd say the difference is significant. I know most un-modified ford fronts seem to go for at least $1000. I'd say you would save enough between the D300 and chevy D60, to do some other major work (say start and engine & tranny swap).

Back to the original post though, pinion angle in the front obviously won't matter, just your preference on which side you want your pumpkin, and how much work you desire.

The verdict is still out for me, I'm waivering between the ford and chevy fronts.

Bob

Costs for my D300:
D300 < US$100
Rebuild? Why would I do that - the 4to1 and hd rear output is all new parts... $0
4to1 kit $525
HD rear output $250
Twin sticks $20 materials
clocking ring < US$100

Total < half the price of an Atlas...

PLUS - TJBob is definatly right - Chevy parts are easier and cheaper to get. My complete Chevy D60 front end with hubs and brakes was CDN$575 (US$375) Ford stuff is over CDN$1100 up here.

HTH,
Phil

well i still disagree with ya guys ill stick with the atlas at cost it is still cheaper then chevy 60 and d300 flip .plus i do need the hp front and rear for my jeep otherwise my shaft angles are crazy...

Originally posted by tj7
well i still disagree with ya guys ill stick with the atlas at cost it is still cheaper then chevy 60 and d300 flip .plus i do need the hp front and rear for my jeep otherwise my shaft angles are crazy...

HUH? Why are we comparing the cost of a Chevy D60 and flip kit to an Atlas?
Don't need no stinkin' flip kit. D300 IS less than half the price of an atlas, but I guess you are right, for the same price as an atlas you could get a 4to1 HD D300 AND a Chevy D60 AND a flip kit (though that would be silly - Chevy 60 is on the passengers side...)

You NEED a high pinion front and rear? :rolleyes: You have 2 feet of lift? I have about 7" (RE 5.5" kit with spacers) and certainly don't need HP axles...

Phil

Originally posted by tj7
well i still disagree with ya guys ill stick with the atlas at cost it is still cheaper then chevy 60 and d300 flip .plus i do need the hp front and rear for my jeep otherwise my shaft angles are crazy...

You don't need it in front as for the rear with that 9" it might be a good idea but you could put a 60 or 14 bolt in there and be just fine. Especially since you have the high angle rear shaft.
Atlas was baised on the 300 if I recall correctly the the innards (shafts gears etc...) are the same size. With a HD output that makes it even stouter than an Atlas.
Bolt on and ease of installation Atlas all the way but heck the 300 will do the job no problem and it's shorter to boot and it's not all that hard to deal with if your swapping front axles.
If we ever swap transfers I will go with a 300 for sure.

i totally agree the d300 is strong as shit and the atlas was built from it but i would still need to do the passenger drop chevy or jeep front diff.as for my lift there CANUCK it 's the same as yours and why not slap in hp's they really arent that expensive front is 1000$ with some minor brake stuff to buy and the rear well thats is whatever you wanna slap in i opted to do a hp as the nine inch was retarded....but i agree you can prolly just slap in anything but i would have to cut down either one to match them both....

Originally posted by tj7
i totally agree the d300 is strong as shit and the atlas was built from it but i would still need to do the passenger drop chevy or jeep front diff.as for my lift there CANUCK it 's the same as yours and why not slap in hp's they really arent that expensive front is 1000$ with some minor brake stuff to buy and the rear well thats is whatever you wanna slap in i opted to do a hp as the nine inch was retarded....but i agree you can prolly just slap in anything but i would have to cut down either one to match them both....

Thought your stuff was full width?

it is now but what i did was pick up a full width front and build the rear a little narrower but not too much.anyways i just rather have hp and have clearance and no dragging shafts ...