On my '89 f150,she has rear ABS,buuuuuuut they don't work. Rear wheels lock up on a hard stop and the front keep rollin. Fluid levels are fine. ABS light is off. Truck doesnt pull at all and moves when I release the pedal. Has plenty of pedal though. Too much sometimes. Ive talked to people about it but want yalls opinions about it. What do yall think it is?
Thanks.