Bear with me, this may be a little long. I have a 1987 f-150 that I've recently bought. When I first start the truck, put it in first and leave, it goes a few inches then stops like a brake is hung up. I have to give it more gas to get past the hang up, then about 20 feet later I get a relatively loud clunk from the left rear. A friend and I pulled both tires and rebuilt the drum brakes (only small parts, not the drum or shoes) for both sides and it didn't do much. I have found out that if I dont engage the emergency brake when I park it and I just put it in gear instead, then I dont get hung up in the beginning, but I still get the clunk noise. Please give me any ideas you might have, thanks a lot guys.

 

e-brake cables sound like there sticking for the one hang up, all of mine have done that, as for the loud clunk, might want to pull the cover and make sure that nothing is out of place,

 

+1 on the cables.