If your truck has ABS it does not have the normal LSPV for the rear brakes. The brake byass adjustment is built into the modulator pump depending on the ABS system. That is one I have not tinckered with.

If you do not have ABS there will be a LSPV mounted on the frame over the rear axle.

Make sure your rear brakes are properly adjusted. That one thing make all the difference. Also, adjust them every oil change and you should see a dramatic improvement in your braking performance and rotor life.

Gadget