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Old 09-09-2008, 11:34 AM
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Deuce Deuce is offline
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Quote:
Originally Posted by Brian_B
The ford truck 9" is a bolt in from 57-73 into your 56.
The 57 to 72 F-100 rear end is a bolt in ... no cutting or having to narrow it. It is a way better rear end than the 1996 Formula rear end. The only reason I could see for using the Formula rear end is ... IF ... it is a disc brake equipped rear end.



The 9 inch Ford is a lot stronger and a lot easier to work on. I would just install the Ford rear end and then buy a center section with a gear ratio very close to what the Formula has ... if I wanted that gear ratio. A lot of the Formulas had a 3.42 gear ratio. Ford has a 3.50



The Formula rear has a lot of stuff that would have to be cut off ... new axle pads welded on ... and I believe they are too wide.

A 57 to 72 F-100 rear end is just over 61 inches wide ... measured this way



A mid 70's Firebird/Camaro rear end is about 2 inches wider than the 57-72 F-100 rear so I know the 96 is too wide.

Moser Engineering can shorten your housing ( $110 ) and shorten axles. Same price But not all axles can be shortened ...

Moser has a web site ... below

http://www.moserengineering.com/Page...pservices.html
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