HEVYHAULER,I've got a '51 640 w/air. Is there a different set of diaphrams for this rig that will give me the low air e-brake system that you are talking about. I loose air, I don't stop There is no manual e-brake on this thing.
'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.
There is no manual e-brake on this thing.