35 inch tires and axle swaps - JeepForum.com
 
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post #1 of 9 Old 08-29-2013, 11:47 AM Thread Starter
atlas4x4
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35 inch tires and axle swaps

If I wanted to fit 35's on a GC i am assuming i would have to get stronger axles. what axles would anyone recommend. Mostly an off road vehicle, but probable highway driving as well. Brands and/or links would be greatly appreciated.

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post #2 of 9 Old 08-29-2013, 11:54 AM
WhiteOut
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HPD30/Ford 8.8, 4.56 or 4.88 gears depending on engine.
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post #3 of 9 Old 08-29-2013, 12:26 PM Thread Starter
atlas4x4
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Which is cheaper/easier to get a hold of. Looking for a v8
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post #4 of 9 Old 08-29-2013, 08:19 PM
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post #5 of 9 Old 08-29-2013, 09:24 PM
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As stated, an hp30 and an 8.8 in the rear would do it. Its a really common combination, im in the middle of doing the same build. A trussed D44 would probably do it too but I dont see it being a very good option, not worth the effort/money.


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post #6 of 9 Old 08-29-2013, 09:27 PM
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X3 on the HP 30 & 8.8, can't be beat price wise.
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post #7 of 9 Old 08-30-2013, 06:46 AM
dave_dj1
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The Dana 30 "upgrade" to a high pinion is marginal at best for that size tire. It's not that big of a difference to make it worth the money it will cost you. You would be better off keeping the front you have and installing some lower gears (4.88-1). Not sure of your driving style but if you are heavy on the skinny pedal you will break no matter what. Leave the front diff open, drive like you don't want to break it and it will be fine. I had a Wrangler with a 4.0, Dana 30 HP and 4.88-1 gears with an ARB locker, I broke it almost every time I went out with it sitting on 36 x 13.5 x 15 Swamper IROK radials. I broke the front shafts so many times that I could change one on the trail in 14 minutes (using on board air). LOL
I had the Ford 8.8 in the rear with an Auburn ECTED and never once even bothered to worry about breaking anything back there.
I just sold a 97 TJ with the 4 banger, stock gears, open/open, and 33" miss-matched tires that would go where locked rigs with bigger tires couldn't. It's all about experience and style. That thing had so much flex it was like a boneless hooker on muscle relaxers! I even lost a front (4" lift) spring one time.


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post #8 of 9 Old 08-30-2013, 06:53 AM
riot1987
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You could swap in a JK D30 if one is available. I think they are all around beefier than an older d30 out of say an XJ


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post #9 of 9 Old 08-30-2013, 09:31 AM
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Quote:
Originally Posted by dave_dj1 View Post
The Dana 30 "upgrade" to a high pinion is marginal at best for that size tire. It's not that big of a difference to make it worth the money it will cost you. You would be better off keeping the front you have and installing some lower gears (4.88-1). Not sure of your driving style but if you are heavy on the skinny pedal you will break no matter what. Leave the front diff open, drive like you don't want to break it and it will be fine.
I couldn't agree more. A ZJ with a V8, 4.88 gears and 35s really is pushing the limits of a D30 (even a HP D30). With a light foot you can make it last a while, or even for quite a while, but make the mistake of giving your ZJ a bit too much throttle and it's carnage time


Quote:
I had a Wrangler with a 4.0, Dana 30 HP and 4.88-1 gears with an ARB locker, I broke it almost every time I went out with it sitting on 36 x 13.5 x 15 Swamper IROK radials. I broke the front shafts so many times that I could change one on the trail in 14 minutes (using on board air).
I've broken three CV shafts on the niner, turning 32s and 4.56 gears, I've broken a Eaton e-locker (which took it's toll on the R&P and axle housing as well, all destroyed). Cromo- shafts were fine though, even after the latest carnage. All this was with pretty easy foot and not jumping it. The one I had on the XJ survived a little better, especially so because I gave it quite a lot more skinny pedal on 35s/ 4.88s. I guess it's the torque of the V8 that just pushes the limits of the tiny D30 too much, considering the weight on the fronts on my XJ was only about 80lbs. less than the ZJ front is.

1998 Grand Cherokee 5.9 LX daily driver, 1.75" BB, 32" KM2s, HPD30 Eaton e-locker/D44a stock LSD, 4.56 gears, custom- fabbed tube bumpers and tube fenders,...


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1990 XJ (4-door), 4.0 I6, AW4, NP242, PBR 42" tires, Unimog 404 portal axles, 110" WB, full cage + uniframe completely rebuilt, front 3-link + panhard / double triangulated 4-link rear,... ***SOLD***
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