Sorry I just posted this in little bolts accidently. I just got a 1951 GMC 640 5-ton truck running. What does the Bendix front brake knob control? Is it brake bias? under what circumstances would you use it? what are some problems, besides leak down should I be looking for? It all works real well, I'm just not sure this is factory. Thanks guys.,,,Rick :confused:


'36 Tall cab Chevy 1.5 ton, '36 Low cab Chevy 1.5 ton, '53 GMC 2 ton, '51 GMC 640 5 ton, '47 Dodge 2 ton, '42 GMC CCKW 353 6X6.