Starting in 70, the 350 and standand 400's FB's had a 8.5(10 bolt)rear. TA's and Formula's with RA motors got 8.75(12 bolt)rears. Like Chiphead said, get the letter code off the axle tube. Post here, and we will look it up for you.
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If you cant drive from gas pump to gas pump across the map, its not a street car.
http://s207.photobucket.com/albums/b...hop/?start=100
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