We assume you have tried to back off all of the wheel adjusters, put 4 wheels on it and try rolling the truck. Heat is kinda' the last resort but you could try some gentle heating of the drum and rolling.
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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