Hat can I do to make my Cherokee stop a little quicker? It's a 2000 with 31s. I know a guy with a built fox body and he used Chevy truck wheel cylinders is this something I can do?

 

search wj knuckle/brake swap. thats a big upgrade. you get dual pistons calipers and bigger rotors. AND a better steering setup

 

Do a ZJ rear disc upgrade. Since you have a 29 spline 8.25 rear, just take the brakes off a 93-98 Grand Cherokee with rear discs and open up your plate a bit. Aside from a 1/2 hour of grinding it's a bolt on upgrade. If you want more stop in the rear then take the O ring out of your stock proportioning valve or swap the prop walve from the donor gran in to your brake system, again bolt on.
I did and noticed a much stronger response all around. Very happy!

If you still want mor up front then follow the above mentioned idea of ZJ fronts.
I personally don't see a need for it until 33s or larger. I'm sure others would agree.

 

ebc rotors and ebc green stuff pads

 

Proportining valve is that brass piece that's right next to the master cylinder right?