WJ swap issue... brake caliper spacing

whitexj98

NAXJA Forum User

Location

Cali

• Feb 23, 2017

• #1

Not sure where my issue is... I thought I would not need to run spacers between the calipers and knuckles with the following setup...

Rotors are WJ redrilled, BD125693E
Hubs are late model, HA597449

But as you can see the rotor is hitting the caliper bracket...





Or did I get wrong parts...part numbers on the boxes match.
Hub compared to my 98 looks correct,



Or did the wrong rotors get put in the box? The part number cast into the rotor doesn't google.... got them off Amazon but I guess I could take one to the parts store to compare to what they got.

Or am I missing something else?

 

Last edited: Feb 23, 2017

J

Jeep Driver

NAXJA Forum User

Location

Parrottsville

• Feb 23, 2017

• #2

Bolt the rotor to the hub.

Unload the caliper.

Center caliper to rotor, spacers.

Whatever distance you move the caliper, make it up with a longer bolt.

 

XJ01-08

NAXJA Member

NAXJA Member

Location

Northwest Ohio

• Feb 23, 2017

• #3

Try putting some lugnuts on so it squeezes the rotor to the hub and then look if that doesn't get it put a 7/16 washer in between the caliper bracket and the hole on the knuckle.

Dealt with the same thing today, tried the washers on mine but it pushed it out too far. Took em out and tightened the rotor down and I had just enough clearance.

 

whitexj98

NAXJA Forum User

Location

Cali

• Feb 23, 2017

• #4

I did bolt the wheels up, caliper brackets gouged the brand new rotors turning the tire by hand...

 

R

RCP Phx

NAXJA Forum User

Location

Phoenix,Az

• Feb 23, 2017

• #5

I had to shim one of the brackets about .100" !

 

S

srb531

NAXJA Member

Location

annapolis, md

• Feb 24, 2017

• #6

the hubs should be from 2000/ 2001 xj they are different than 98 hubs

 

Winks00XJ

NAXJA Forum User

Location

Prescott, Arizona

• Feb 24, 2017

• #7

Interesting, I plan to do this swap next weekend using the same parts(01 XJ hubs and WJ rotors re-drilled). Following to see what your end result may be.

 

cal

NAXJA Forum User

NAXJA Member

Location

Hammertown, USA

• Feb 24, 2017

• #8

I've done the swap many times and never had that issue.

 

S

srb531

NAXJA Member

Location

annapolis, md

• Feb 25, 2017

• #9

Winks00XJ said:

Interesting, I plan to do this swap next weekend using the same parts(01 XJ hubs and WJ rotors re-drilled). Following to see what your end result may be.

Click to expand...

this is what i used , mine went together perfectly.

 

whitexj98

NAXJA Forum User

Location

Cali

• Feb 25, 2017

• #10

srb531 said:

this is what i used , mine went together perfectly.

Click to expand...

Which are what my parts are as well... I would just recommend taking a look at the caliper spacing on the rotor for anyone doing the swap.

I spaced the bracket out and it seems to be good to go now.

 

whitexj98

NAXJA Forum User

Location

Cali

• Feb 27, 2017

• #11

So little update, I found what most of the issue is/ was...

The rotors have quite a bit of run out. Well I didn't check the hubs by them selves but I'm betting its in the rotors. I have it shimmed to be happy now, brakes seem to be good.

 

cal

NAXJA Forum User

NAXJA Member

Location

Hammertown, USA

• Feb 27, 2017

• #12

if the rotors have that much runout, they will push the pistons in while you're driving, and the first 30% or more of every pedal push will be just to re-engage them before braking.

its super unsafe. track it down and fix it.