Guess I never seen the need for a Dana or 9" until you are making 1200HP and hooking hard. When I worked for Jim Kinnett he ran 12 Bolts in his Super Stock car and the first few years in Pro Stock behind Hemi's and a 4 speed. Steve Bagwell did the same. Changed to a 9" just for ease of gear changes. Set up properly with a good spool or carrier and good axles they will last.
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65 GTO, Tiger Gold, Nostalgia Super Stock 421, 2-Carter AFB carbs, Stock Suspension, 3550lbs Full Exhaust-- 9.70's@135
66 GTO (Retired race car)
421 CID
Multiple NSCA/NMCA World Champion
66 GTO 389 3x2, 4 speed, 3.90 gear, Montero Red 33K original Miles
67 GTO 2dr Post, 428, Tri Power, 3.55 Gears
80 Trans Am Black SE Y84 W72 WS6
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