1976 F100 Brake Parts
 

When I was driving my truck (1976 F150 360 v8 4x4) and I had issues with the front brakes locking up after a little bit of driving. I replaced all front end brake components, master cylinder, brake booster, brake lines, and proportional valve and the last time I drove the truck it was still having the same issue. I took off the master cylinder to replace thinking I had a bad one, and just left it to sit. Its been about 10 months since I last drove it down the road, it will still crank up at the turn of a key, but Im wanting to get it driving again, and now that I have more money Ill be able too. My question is could y'all post links/parts you recommend that you know will be right? Im wanting to replace master cylinder, and brake booster first. Thank you in advance.

i had the same situation... Your booster likely has a internal leak and doesn't release until the trapped pressure is bleeds off (after shutting down).

My brakes would be basically locked up and I darn near the pedal to floor just to make it around the block and back to my house.