I have seen it mentioned in several threads about swaping wj calipers and rotors into a xj. I cant speak for all wj's but my wj has a 5 on 5 bolt patern. are there only certain years or trim packages of wj that have 5 on 4.5? also are the calipers bolt on or is modification required I have tried searching for thread with some detail on this mod with no luck. thanks for any help in advance
but then a 98 and earlier wont be a WJ and thus would not be an upgrade. knuckles from a 99-04 grand cherokee are the ones to get. do a search and all of the info can be found. as for the bolt pattern, you retain your stock 5x4.5" with the swap since you use cherokee hubs.
Completely stock, and keeping it that way...
With the WJ set up , it goes like this .
WJ ball joints
JKS spacer(need to be welded)
I think I used 2001 TJ wheel hub bearing (Ill have to confirm)
JKS tie rods
WJ double piston calipers
OTK track bar may be required as well (I haven't "yet" but don't use it on the road)
My cost was very close to $1000 buying everything new but the spindles , but , it is the bomb
Only issue is some pitman arm TRE binding when flexing . I would use a ZJ pitman arm for sure (1" drop) on the XJ
i personally have never seen a rotor "brake" ,now I have seen them warp or get grooves in em from wore out pads. I have heard they can explode but I think that only happens if one neglects them. But Im sure it is possble I just have never seen it
I have had rotors crack around the hub, to the point I did not feel safe with putting it back on....no matter how far I had to go.
If I were in a situation where I needed a new one quick (need to go to work, caliper locked up and runined a rotor on a trip to the beach.) I would much rather have off the shelf parts on such a critical system like the brakes.
Just my opinion.....plus I have had no issues with the stock setup, so I cant see upgrading where I have no issue.