spins one tire....back it up put it in drive spins 2. Posi unit gone bad or......what? Read clunking into gear same section. Thanks guys you're a big help. http://www.nastyz28.com/ubb/smile.gif

The only way to tell if you realy have a posi is to remove the cover and look at it. You may have a standard differential that has a worn cross shaft from doing one wheel burnouts. This will cause one to spin both wheels sometimes.

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'69 RS/SS396 Pro Street
427 4 speed 9"
Byars Performance
High Performance Drive Train Parts And Service
www.lubedealer.com/biggearhead (http://www.lubedealer.com/biggearhead)