Rear disc conversion

[Silver Sport]

I was wondering if the rear Discs off of a Grand Cherokee would fit on my XJ without to much trouble, my gearhead friend say they will but they are not Jeep guys, So I thuoght I would ask you guys.

 

[HodgePodge]

Search the tech forum.. Lots of tech on it there.aperwork

"Discussion of Chapter issues. Please keep Tech Topics on the Tech Forums."

 

[willyb]

Yes, ZJ rear disc brakes will work on the D35/8.25. The D35 will bolt right up, the 8.25 will need to be bored out a little. There is a lot of info out about this...

Will.

 

[Chancer]

D35 requires a spacer, but yes, it works. Lots.

 

[Silver Sport]

Sorry, New to this whole thing, I havent quite figured it all out yet

 

[incubi67]

yeah it works and its awesome. i have 98 zj discs on my 98 xj and i absolutely love them. you cant lock them up without changing the proportioning valve. but without abs you dont want to lock them up anyway. all you have to do is pull the axle shafts out and remove the xj backing plate and then bolt on the zj backing plate. once you have that its basically just putting a brake setup back together. time takes about 3 hours. it really is insane. major increase in braking power. go for it man. you'll like it

 

[cherokeekid]

D35 requires a spacer, but yes, it works. Lots.

?

 

[GasAlley]

i am so confused... maybe I am not enough of a "gearhead" but why on earth would it require any modifications? Do they not use the same hub or stud spacing? who knows maybe I am just retarded however I really doubt that is the case.

Chris

 

[cbremer]

i am so confused... maybe I am not enough of a "gearhead" but why on earth would it require any modifications? Do they not use the same hub or stud spacing? who knows maybe I am just retarded however I really doubt that is the case.

Chris

there's a flange on the end of the axle tube with 4 bolts that hold on either the drum brake backing plate or the disc brake caliper bracket. the arrangement of these 4 bolts is the same on ZJs and TJs, but different on XJs. that's the gist of it... there are a few other details to watch out for too

 

[GasAlley]

so pretty much nothing out of the ordinary when you are swapping drums for disks?

ie dust shield, cal brackets, and what not...

 

[cherokeekid]

there's a flange on the end of the axle tube with 4 bolts that hold on either the drum brake backing plate or the disc brake caliper bracket. the arrangement of these 4 bolts is the same on ZJs and TJs, but different on XJs. that's the gist of it... there are a few other details to watch out for too

the clipped 35's and 8.25 use the same pattern as the ZJ/TJ's

 

[cbremer]

the clipped 35's and 8.25 use the same pattern as the ZJ/TJ's

yup... i should have mentioned that I was referring to XJ D44s