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Discussion Starter · #1 ·
Ok so its not an atlas... But Since im parting out the CJ and just so happen to have a dana 300 sitting there.

Is it worth doing a flip kit and a 4:1 and bolting it under my tj? oh dont forget the twin stick.

thoughts... comments, flamage, prices, etc.

thanks guys

DP <IMG SRC="smilies/thefinger.gif" border="0">
 

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i think the flip kit is about 700 bucks.. and it has twin sticks that come with it.. i believe.. a shop up the road here.. builds them.. Down East Off-Road.... i think its a good deal.. cheaper than an atlas.. if you really want trick.. get a d44 front.. passenger side drop.. leave the d300 right side up.. wink wink..
 

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d300 - in your case free
4 to 1 - $600
flip kit and shifters - $700
output shaft upgrade - $500
labor if not done yourself - ??

pretty close to an Atlas price.

True, you don't have to do the shaft upgrade and you will end up with a case stronger than a 231 but not as strong as an Atlas.
 

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Once again here is my resoning

D300 $25
Flipkit $700--i think price has went down
4:1 $700--
drv shfts $300
sell 231 -$350, new rear, shorten front
Total $1375

SYE for 231 $250
4:1 for 231 $1000
2WL for 231 $200

Toal $1450

Atlas II 4.3:1 $2300 from local shop
Drive shafts $300
sell 231 -$350

Total $2250
Not to mention more fabbing involved in installing Atlas, and its a little longer than the 300
 

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i dont think you can upgrade the output shaft when you are using the 4:1 kit in a d300.. unless it has changed recently.. but yes... its still stronger than the 231.. so i think its well worth it over the atlas.. plus you wont have to buy special fluid for it..
 

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Discussion Starter · #6 ·
hows the gearing in the 300... would it need a 4:1 right away.
 

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i have a dana 300 flip kit sitting in my shed. i decided to swap the chevy d60 in instead and didnt use it. any offers, i dont wanna take a killing as it hasnt even been taken out of the box.
 

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Wether or not you need 4:1 depends on your type of wheeling and the rest of your drivetrain and tires. Probably not much rock crawling near you.
 

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Originally posted by jeepgod:
<STRONG>plus you wont have to buy special fluid for it..</STRONG>

90w Valvoline synthetic all that special? <IMG SRC="smilies/thefinger.gif" border="0"> <IMG SRC="smilies/biggrin.gif" border="0">
 

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Originally posted by JasonTJ:
<STRONG>

Atlas II 4.3:1 $2300 from local shop
</STRONG>
Wow, didn't realize they were that expensive---and I have one. <IMG SRC="smilies/biggrin.gif" border="0">
 

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Originally posted by jeepgod:
<STRONG>.. if you really want trick.. get a d44 front.. passenger side drop.. leave the d300 right side up.. wink wink..</STRONG>
I don't think there is enough space under there to run the dsahft on the other side of the engine. I think the engine is offsett to the passenger side to allow more room for the front driveshaft. You would also have to have a completely new exhaust system fabbed.

Chris
 

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You dont have to do the 4:1 right away, the 300s low range is just(around) .10 higher than the 231, It oils normally and still accepts the upgraded tailshafts. That is my winter project now. Putting the strong tailshaft and 4:1 into the 300 in my TJ.
 

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Is the 300 a direct bolt in for a 99 TJ 5 speed? or is an adapter needed?
thanks, Rob
 

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The 300 will bolt right in if you leave it "right-side-up" but you will need a T-case drop because the D300 hangs down a lot more. Or you can get what's called a "clocking ring" to lift the droop side of the 300 into a higher (if not horizontal) position, also allowing you to flat-tow without oiling problems (common to D300's on long trips). You won't have a problem with engine clearance with your driveshaft, but you will need a new exhaust, similar to the CJ (straight down the drivers side). The D300 has a 2.62:1 low range vs. the Atlas' 4.3:1 or 3.7:1 gearing... That is up to you... as for the output shaft... I know everyone says they're weak, and they are the weak point of the T-case, but I have seen people run 38's and a healthy 350+ hp engine with a D300 and never once have a problem. If you wait on any mod to the 300 I would wait on the output shaft. My question to you is wether you want to buy the Dual shifters ($90) and re-run your exhaust guessing high...($300), or buy an Atlas (I am honestly not recommending either way, both would be EXCELLENT choices. I won't add driveshafts to the cost because you'll need those with anything new you get.

hope I have helped...

Aaron <IMG SRC="smilies/usa.gif" border="0">
 

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Originally posted by Rob B:
<STRONG>Is the 300 a direct bolt in for a 99 TJ 5 speed? or is an adapter needed?
thanks, Rob</STRONG>
Rob, Your question requires that you decide if you are going to replace the front end.

If you go with a passenger side diff. You can run the dana 300 right side up.

If you are running a TJ front end. You have to invert the dana 300 and buy the flip kit from www.downeastoffroad.com

I am figureing that a dana 300 flipkit/teralow/heavy output shaft/twinstick/oneton cv joint/emergency brake is the way i am intending on going. Its going to take me awhile to afford it. But it should be sweeeet when its done. <IMG SRC="smilies/biggrin.gif" border="0">
 

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Discussion Starter · #17 ·
i was reading some info and the 231 gearing is 2.62 and the 300 is 2.72 stock. If i did it i would have to go 4:1 because a swap like this wouldnt be justafiable without it. Why spend all the money to put a stock 18 year old tcase into my jeep.

i guess i better start checkin the couch for pennies
 

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First of all the Dana 300 has the 2.62:1 ratio while the 231 has the 2.72:1 ratio. Second, the swap is still an excellent option (without the low range) because it is so much stronger than the 231. That is the main reason that people swap 18 year old T-cases into brand new Jeeps... the brand new T-cases don't hold up as well as the older ones during serious off-roading. I actually blew apart my 231 in 2wd on the street... I seriously considered a D300, but financially it was more feasable for me (a poor college student) to rebuild the 231. Don't discount the 300 simply because it's not a balls-to-the-walls crawler right from the start. His 300 doesn't come with a balls-to-the-walls price-tag either remember that.

CJ axles can be found cheap, and in complete, working, condition... making the swap come out to much less than the cost of an Atlas...

Good Luck in whatever you decide.
 

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Alan,

Just drive the thing with the 231 til springtime when you can come to Paragon and break it. <IMG SRC="smilies/biggrin.gif" border="0"> Seriously, just get it on the street for now. I'm waiting to see those new (old) axles in action.
 

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Discussion Starter · #20 ·
jim... it will be in action at paragon in about a month.

i should have it on the road in like a week im thinking. i just have to crawl under the f'n jeep and finish. In all reality i could probably have the wheels on it it tom. if i tried but im still waiting on the pitman arm to come back from the machine shop.

*edit: [email protected]# sorry i flip floped the numbers on the gear ratios that was my fault.

[ 10-19-2001: Message edited by: Dust Puppy ]
 
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