thanks, Jack
1995 chevy montecarlo, 3.1;brake and abs light on, did complete brake job, rotors, calipers, pads, wheel cyls,shoes, drums, and all new hardware. lights still on. problem is there is no fluid going to the rear wheel cylinders. open bleeders on abs unit and get fluid, crack lines at abs unit to rear wheels and no fluid. I thought abs works diagnally, rr,lf; lr, rf,. is there a porportioning valve in the abs unit which needs centered ? if so, how do you do it.