jdhed1

My 96 f150 jerks like ive hit a pothole and at least one of the rear wheels lock up briefly when I apply the brakes. The pedal is spongy as well. At first I thought it might be a transmission thing. It also makes a sound like ive crossed a rumble strip when it shifts into high gear but it's very brief and its done that for quite a while. Anyone else hear of these symptoms?