When you re-assembled the rear axle and differential, did you add posi additive with the gear lube? If it is a clutch type posi unit it will chatter and grab when cornering if it doesn't have the posi additive.
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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