• Welcome to the new NAXJA Forum! If your password does not work, please use "Forgot your password?" link on the log-in page. Please feel free to reach out to [email protected] if we can provide any assistance.

WJ Knuckle Swap Problem

W

Wounded XJ

NAXJA Forum User
Location
Rimrock, AZ
I was doing this swap this weekend when I ran into clearance problems with the rotor. When I put the rotor on it does not leave room for the caliper bracket in the rear and it hits the steering heim in the front. It is like I need another spacer on the knuckle to push the unit bearing a 1/4" further out. Here is what I'm working with:

89 Jeep Cherokee Dana 30 with the 89 unit bearings
WJ knuckles with JKS spacers welded on
2001 Ford Sport Trac rotors.

I picked up some WJ rotor today and was going to drill them. Measuring them they are a little different than the Sport Trac rotors and it will make some difference, but I think I will still have spacing issues. Anyone run into this while doing their swap and if you did what did you do to correct it?
 
I had a similar problem when I did the brake on my 90. Went to napa to turn the rotor , they say out of tolerance, I say I'll buy new ones. I go home, NO fXXXing fitty because the rotor hit the caliper bracket, I grumble back to napa, we investigate, turns out I had 89 parts(probably because mines a early 90 model, just a guess) The fXXXing rotors I had were in tolerance so I tell the guy "go get em out of the dumpster and turn em! Problem solve 3 hours later. On a side note I have the cop rearend with bastard brakes, I learn that one the hard way too. My XJ sucks so bad but I LOVE IT! But I would look at unit bearings from the new ones. That does jack up the cost ALOT though. Sucky! Hope you find A quick, easy, and safe solution. good luck.
 
Which unit bearings are you using. I discovered that I had to put spacers between the caliper brackets and knuckles an then everything lined up and I used 2001 sport-trac rotors with a MM hub kit.
 
CartsXJ said:
Which unit bearings are you using. I discovered that I had to put spacers between the caliper brackets and knuckles an then everything lined up and I used 2001 sport-trac rotors with a MM hub kit.
Click to expand...


Like stated in the 1st post, he's using 89 unit bearings (The mistake) and has figured that out.

OP said:
89 Jeep Cherokee Dana 30 with the 89 unit bearings
WJ knuckles with JKS spacers welded on
2001 Ford Sport Trac rotors.
Click to expand...


praetorian said:
I think you might need this http://store.jksmfg.com/merchant2/merchant.mvc?Screen=FAB_930&Store_Code=JKS01&Category_Code=FABParts
Click to expand...

#1 that link doesn't work

#2 He already has that part installed.

Did you guys red the first post at all?
 
i just uesd my 91 bearings with the wj rotor worked just fine
 
I'm having a hard time finding 1999-2001 Cherokee or 2000 to 2005 TJ unit bearings. I think I can get some 1991-1998 ones. Will this work? Correct me if I'm wrong on the bearing years.
 
I think the difference is that on LP d 30 axles..2k, 2k1 The unit bearing is not as wide (wms - knuckle) That must be the difference you guys are talking about. I'll get a pic real quick.
 
I know these aren't the unit bearings. However, the taller rotor is off of a hp d 30 whereas the shallower rotor is off of a lp d30 axle. The difference is in the unit bearings as well. The lp bearing is not as wide.

rotor3.jpg



rotors.jpg
 
You must log in or register to reply here.

Similar threads

M
XJ brake upgrade
Replies
7
Views
113
RCP Phx
R
F
Axle Swap Advice
Replies
13
Views
149
Evan03
E
ehall
steering overhaul
Replies
6
Views
128
XJEEPER
XJEEPER
W
WJ rear split seat lowers in XJ - mounting to floor or body seam?
Replies
0
Views
2K
Woodswanderer
W
L
Manual to Auto transmission swap
Replies
9
Views
206
lvcanyoneer1
L
Back
Top