I have a 97 xj that grabs hard on the left rear brake every time i go to stop...is that the proportioning valve or self adjuster...she also pulls to the right..new steering and suspension components and the shop said they set it to spec...is there any way i can check it and manually adjust

 

Check the backing plate for grooves and also check the return springs they can be weak , the brake lines can be pinched or the wheel cylinders can be bad .

 

Remove that drum and inspect. We're not gonna be able to figure that out over the interwebs.

Brakes are too critical to guess about.

 

The soft part of the hose is also suspect. They can fail internally and act like a one-way valve.

 

Thanks..will check this weekend..hopefully can get some pics..

 

Leaky axle seals get grease on the other wheel. Or maybe the parking brake cable is rusted stuck on. I was taught that adjustment cannot cause pull, but idk, but that's what they taught us at Bill King's Brake-O in Dallas.