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Old 10-15-2011, 12:34 AM
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Pantaz Pantaz is offline
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I broke 2 different 10-bolts in my '68 GTO with a high mileage, nearly stock 400 (not HO, or SD) and a TH400. Broke a spider gear in the the original "open" differential. Replaced it with a posi unit. Broke the pinion gear shaft on that one. Replace the whole rear end with a junk yard 12-bolt. No more problems.
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