Ok, now I'm concerned.... Reference my previous posts, got a new Eaton posi unit put in my 96 F-150 auto short box, and now the rear brakes pulsate A Local 4x4 shop did the work, and put in new axle shafts, bearings, and the Eaton unit. I just put brand new brake drums on tonight thinking that they were out of round, but it's still doing it: Rolling down the road, and apply light emergency brakes (to completely eliminate the front rotors etc), and the back starts to pulsate. Apply a light pressure to the main brakes (while there is a tad of emergency brakes) and it *really* pulsates. The only thing that I can think of is that the new axle shafts are not straight. (is that possible?) Wheel bearing pressed on wrong, or canted on the shaft? Or, is it possible that there is some normal interaction with the posi unit itself? Maybe the clutch's inside are "hunting" or something when the rear wheels brake? Advice needed. Thanks!
- posted
17 years ago