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Old 03-20-2011, 11:39 PM
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My YJ and it's future rear end

So, it's almost that time of the year when I make major changes to the YJ. Summer is coming, and college will be out. With that in mind, my new project will be dealing with my D35c in the rear.

I've got a lot of options, but I have to think about what I really want and how feasible my options are.

What I want:
A locker. Haven't decided between an auto locker or a selectable.
Regearing to 4.56. That is a must. I need to gain my power back.

Let me give you some insight on my Jeep:
1995
2.5L with a TF904 behind it.
4" SUA
33x10.5 (won't be going larger for a loooong time and probably not on this jeep)
SYE is not in the budget
3.73 in the diffs (will go to 4.56)

A little insight on my jeeps uses:
First off, my Jeep is my daily driver. I need it the following monday after a weekend of wheeling. I'm also not the guy on the trail who hammers the gas until I climb and obstacle. I take it slow, and see where my wheels are on the trail. I also try to avoid mud. I feel like mud is just a lot of unnecessary wear and tear. It's fun, just not that fun. I prefer climbing over rocks, and trail riding.

Option #1:
Build a ford 8.8. I can't weld, so this one could be tough. I have friends who can fabricate, but I would love to keep this in my garage.

Option #2:
Buy a built ford 8.8 from Complete Ford 8.8" Rear Axle Assembly Jeep YJ Ready to Bolt In Axle Swap
I kind like this option. It's reasonably priced, and I can do all the work myself. I'm not certain if this axle is totally ready to bolt in or not. I know the dimensions on the 8.8 width wise are not the same. I'd have to call east coast gear supply and ask.

Option #3:
Do the super 35 upgrade. I like this option as well, and the price isn't to unreasonable. Comes with a locker, which I really like. I also like the thought of keeping things close to stock. I know some might disagree, but there is something to be said for it.

Option #4:
I'm not sure if this is even possible, but I'm wondering if you can go with an 87-89 non c-clip YJ D35, and go with the super 35 kit and wait to buy a locker. I'm not certain if the c-clips were the only change from 1990 and up.

So, I'd love for your opinions. I prefer opinions from people who have dealt with these options first hand, but all opinions are welcome.

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Old 03-21-2011, 02:10 PM
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No opinions?

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Old 03-21-2011, 02:23 PM   #3
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I say 8.8 or nothing

Dimensionally they are not much different. Most fronts and rears are not exactly the same width for a reason. Ford started this back in the 60's because they decided if the rearend was a little narrower than the front end, it would have that much more fresh terrain to grab ahold of...instead of running in the exact same ruts.
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Old 03-21-2011, 02:27 PM   #4
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I d look into #2
but #3 isnt a bad idea either ,if you wont be beating on it to hard .
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Old 03-21-2011, 03:11 PM
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What about a 29 spline Chrysler 8.25" out of a 97 through 01 XJ Cherokee?
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Old 03-21-2011, 03:18 PM   #6
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never messed with em
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Old 03-21-2011, 03:19 PM   #7
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I think that 8.25 is the same as the halfton trucks right? If so, they are junk...our work truck has 115K on it, and its now on its 3rd rearend. The eat pinion bearings bigtime.
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Old 03-22-2011, 06:00 PM   #8
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i say find a 4.10 8.8 out of a junkyard and get a matching 4 cylinder d30 with 4.10's that will still leave you with plenty of work minus the welding of the perches and shock mounts. thats the exact route im going

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