WJ/XJ unit bearings on a D30

[jeepers48]

Will the Unit bearings from a WJ/2000 grand Cherokee D30 swap to a 1994 XJ Cherokee D30 and use the same XJ inner and outer shafts? Im thinking of swapping in a D44a rear from a WJ i already have and The front axle, a D30 from a 94 XJ. The WJ has a 5 X 5 lug pattern. Thats why im asking.

[Monkeyevil]

Should swap fine... you may have an issue with brake rotor hat depth, but there are like 3 sizes for a d30 and one will work.

[MJ_Silver_1988]

swap the whole wj knuckle on and take advantage of the bigger brakes

[nick_n_ii]

Originally Posted by MJ_Silver_1988

swap the whole wj knuckle on and take advantage of the bigger brakes

I agree with this.. easiest fix and best upgrade..

[jeepitupyo]

I know the shafts are the same. I once got a WJ unit bearing by mistake and didn't notice it was different until I went to put the rotor back on.

[jeepers48]

Cool, thx for the info guys.

[redleg]

U-joints won't center properly to the ball joints. Unit bearings mate to the shafts at different depths. here's the write up.
http://www.4x4wire.com/jeep/tech/brakes/xj_wjbrakes03/

[jeepers48]

What he is doing is totally different than what im doing. In the write-up he is using WJ knuckles, calipers and TJ hubs. Im going to use WJ hubs only. But because of the write-up I will check for any differances now that you have brought this to my attention. Thx for the info. If it turns into a cluster F* I'll probably weld and redrill the hubs I have.

[Monkeyevil]

All the WJ, YJ, TJ, XJ, etc hubs... hold the shaft in the same location.

[go1lum]

Why do you want to swap in a D44a they are pretty weak.
http://naxja.org/forum/showthread.ph...highlight=d44a

[jeepers48]

Tell me something I don't already know. If I were going to use it for a rock crawler then yes your right and it wouldn't make sense to use it. The Willy's pick-up, these days is more of a "Mall" crawler. Nobodies beating on the front door for this axle(its for sale) so rather than do nothing with it and lose $$$/what I paid for it, I'll put it to use till im done pouring money into my D60 & D44. "and then scrap it"/part it out or sell whole with the tubes shaved of the coil buckets, replaced with leaf spring pads.

If my Flathead 6 cylinder breaks a D44a while im wheeling......I'll be impressed.