SatiricalHen

Are there any rear disc conversions that you can keep a 15" alloy rim with or do all of them require a 15" steel or 16" alloy? I've been looking for a while but either can't find what rims they will fit or they say they don't fit. I've been wanting to do this for a while but I don't want to have to buy new rims and tires. Thanks! And sorry if I just completely missed something.

XJEvo

You can keep 15" alloy wheels with the ZJ/KJ rear disc swap

andrewmp6

Most rear disc are small so they will clear 15s no problem.Its the front brakes that are bigger that can cause wheel fitment problems.The old rule of thumb was take the disc size and add 2 inches for a single piston and you got the smallest rim you can clear.

s346k

you'll need longer wheel studs with anything but a stock steel rim

ubipa

Why would you need a longer wheel stud? The thickness of a drum shouldn't be that far off of the thickness of a disc. I run zj discs with rubicon alloy rims on my xj w no problems.

SatiricalHen

Can't I just take the studs out of an old set of front hubs? And put them in my axle shafts and then use pretty much all the liberty parts?

toasterknight

Yup you can just use front studs. Heres a part list for the KJ conversion with mopar part numbers.

06 liberty parking brake assmebly
left: 52129177AD
right: 52129176AD
06 liberty caliper
left: R5179731AA
right: R5179730AA
06 liberty rotors

06 liberty pads

06 liberty backing plate studs
6x 06036595AA

zj softline

crown parking brake lines
left: RT31041
right: RT31040

SatiricalHen

Conveniently I just replaced my hubs haha

Big David

FYI, a 14 in. wheel will clear the ZJ rear discs.

SatiricalHen

Does it have to be a 06 or is there a range?

toasterknight

Those numbers are from an 06 if you get a different year you just need to match the all the parts for that year except the studs.

SatiricalHen

Alright, anything other than pads and rotors that would be a no no to get from the junkyard?

toasterknight

The zj softline. And youll never find the crown parking brake lines. I would be tnew calipers but youll need the jy ones for the core.

s346k

i put a set of canyon wheels on my xj with the zj discs and needed a longer stud. ive seen a couple others in person utilizing aluminum wheels that also needed longer studs

SatiricalHen

Yeah that's what I figured soft lines aren't that expensive and they're pretty important. And calipers are also fairly important. Since you said crown I figured it was a new part id have to buy from them. And do I need to get proportioning valve guts? Thanks for all the help!