i have an 89 cherokee limited package. it has the abs on it and my front breaks are locking up and wont release. i just got it and they hard wired in the power break relay to a swich. the relay for it is out and missing. i was wondering if anybody can help me with my problem

 

Remove abs system and install regular brake booster best bet .In the long run you come out a lot better off than the troublesome early abs system.

 

I second this recommendation! BTW op, It is B-R-A K-E-S not breaks unless you mean you Jeep is taking a break for a cigarette?

 

Told you Tyler

 

Ya told ya ...lol...

 

He's a buddy of mine I helped him do calipers and rotors and pad they were seized up and now it's till locking up. Someone did some shade tree wiring for the abs pump there's a hot on off switch to run abs cuz the brake relay is bad accepting to the PO. I told him when he got it to scrap the junk *** abs ASAP as it will not work when he does the 8.25 swap

 

so put a regular brake booster and take the abs pump out?

 

You need:

Master, booster, prop valve, and the lines from master to prop valve.

Last one I swapped I found it best to pull the hard line from pass front wheel to prop valve rather than a flair and a small piece of line.

 

This but go one step further upgrade booster to double diaphragm .....http://www.4x4wire.com/jeep/tech/bra...kes03/booster/

 

Yes do thi

 

what is the prop valve

 

Proportioning valve, it controls how much braking is applied to the front and rear. Your front brakes do most of the work with the rears doing very little.


Black89