Just yesterday I loaded 90 bales of hay on my 1957 5700, truck originally had hydro-vac booster but I have bypassed it for the time being, so with manual drum brakes on all four corners and estimated total weight of 12000 -15000 lbs. I had no problems with braking.
1957 Chevrolet 5700 LCF 283 SM420 2 speed rear, 1955 IH 300U T/A, 1978 Corvette 350 auto, 1978 Yamaha DT175, 1999 Harley Davidson Softail Fat Boy
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