JoeG

I'm planning to convert the rear brakes to discs on my 99 XJ Sport here in the near future. Without debating the pros and cons of that, I need advice on what backspace to use on the wheels. I am planning to get new 15"x8" soft 8's. The new tires will be 31's on a planned 3" lift. I haven't done the work yet, I'm just in the planning stage and I want to take advantage of the deals this week. The guy at the shop said he could order the wheels with what would come out to be 3.5" backspace. I was thinking closer to 4.5" would be better. I just want to clear the discs while not causing unnecessary rubbing on the fenders of course. What do you think?

SexyDexy

I prefer a 3.75" BS.

4.3L XJ

If you are using Liberty or ZJ brakes, the back space really doesn't matter. But if you are going to 12" discs in the rear and use something like a WJ set up from Tereflex then the less back space, the better

JoeG

I am using Liberty brakes. I got them from the junkyard thinking they should fit my Chrysler 8.25 without modification. So I can pretty much run anything between 3.5 and stock with no problem?

4.3L XJ

No problem

JoeG

Thanks for the help! I can get a pretty good deal this week but I have to make a decision on the setup.

4.3L XJ

good luck

Big David

Yeap. Direct bolt on. You can run 14 inch wheels with them.