When i first start up the truck the brakes are good. After a few min, i hear the rear brake humming. The other day it caught on fire (Pad) and i just blew it out. I can feel them holding sometimes. Just going to rebleed just to eliminate that possibility.
Weight? For what

When i put a bumper on itll help a little, may weld a plate to the inside of it if needed.
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69 c-10 BBC

462ci, forged crank, H-beam rods, 10.5-1 KB forged pistons, Dart Iron Eagle 308cc, Straub Cam, Comp Cams chrome moly full rollers, Weiand Team G, Prosystems 950, TH400/3500 Dalenzie stall, Currie 9+ Detroit Locker w/31spline axles.

3.5/6in drop.
My Build.