I think I need bigger brakes. 92gt. Ive always thought theses stock brakes were okay but Im running my buddies f-thing and I seem to run out of friction about 2 seconds after applying the brakes(from 100 down). Ive rebuilt completley and installed carbon metalic pads. They work great after theyre heated up,but something goes bad over 80 or so and theres a knock. I guess a rotor or drum warps when superheated. After stopping they work ok again. Ive never had this happen on any of my big Fords(67Gal,79F100,79Ranchero,68&65Galaxies). Ive got those pads on my truck and from 100 they will stand you on your nose.I cant afford those trick new brakes but I like junkyardstuff. I also dont want to loose my oe wheels,I like em. How about redrilled lincoln brakes or something? ps ,My 79 F100 runs low 14s at 92 or so. does that sound good or not?