The clicking/clunking/thumping noise at standstill or very slow hard turns is probably the front spring shackles/eye bolts, grease 'em if you can for a test, depending on how worn they are the grease may not quiet them.
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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