Thanks for the reminder about the proportioning valve.
Easy way to deal with it is to take the "guts" out of the donor vehicle's prop valve and install into the xJ.

 

Yup.

Not really needed, I didn't do it but apparently with larger tires it helps

 

It helps with the 31s on my wife's 88...................

 

i didnt do the prop valve on mine, and the rear discs notably improved my brake power. as well as bleeding the whole system

i plan on doing wj brake in the future, but you can also swap in a durango master cylinder. has a .25" bigger bore, adding more braking power, i will eventualy have this to

 

Use quality pads and rotors, and the rear disc swap. Your looking at around $400-500 and good braking. Much cheaper than majority of the front big brake kits out there

 

Please excuse me for my ignorance but what all am I looking at needing for the rear disc swap and what all years and models can I get them from? Is it best to use the used salvage yard parts or buy new? Can someone lead me in the right place to make sure I get quality parts? Also what pads and rotors for the front and where do I buy from? Thanks in advance for all the help, I really want this cherokee to be done right, it was a long/patient search for me to find this nice of a dying breed and I want it to be done right and last for years to come.

 

give bigdavid a holler, he sells disc kits, you find is thread in the for sale section

 

X2. I did business with him. Super guy, still answers my questions and I got mine 6+ months ago.

 

Like stated already, you'll need the ZJ backing plate from the rear. I bought new rotors and pads for it. You'll need a dremel and grinding stone to open the center hole about 1/8" to fit the 8.25 axle. For the front I'm running napa premium pads and rotors with slots. Plus have some clean fluid in your lines and you're golden

 

Get in touch with Big David for sure.

Here's a link on how to do it. Pretty easy.

https://www.cherokeeforum.com/f51/re...-8-25-a-57807/

 

12" front discs are the biggest you can fit in a 15" rim.
The ZJ 11" rear discs work great. Got mine from Big David.