+1 for ball joints
My Notch did this before I replaced the badly worn lower ball joints. Doesn't pop or jump or wiggle around at all, anymore. (The car also would try to change lanes when I pressed on the brakes, even after replacing both front calipers, brake hoses, pads, rotors, and bearings. Stops perfectly straight, now.)
Put 'er up on some jackstands and give them wheels a wiggle up and down. Shouldn't be very much (if any) vertical play at all.
My Notch did this before I replaced the badly worn lower ball joints. Doesn't pop or jump or wiggle around at all, anymore. (The car also would try to change lanes when I pressed on the brakes, even after replacing both front calipers, brake hoses, pads, rotors, and bearings. Stops perfectly straight, now.)
Put 'er up on some jackstands and give them wheels a wiggle up and down. Shouldn't be very much (if any) vertical play at all.
5.0 cars have 11" disk brakes while 4 bangers have 10" disks. They use the 79-86 front spindles which was used on all Mustangs, v8, I6, V6 and I4.
Allen