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12 bolt posi

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Old Jan 10, 2012 | 07:49 AM
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Default 12 bolt posi

Building a 12 bolt for a 90% street driven 2800lb car,Six speed,appx 460rwhp,3.73 or4.10.I know there a lot of different posi's on the market now.Is an eaton type posi still the best choice for this application?Also installing disc brakes after narrowing.I plan on useing ford bolt in type axels.Should I use old style big ford bearing housing ends or is there any advantage to another type of housing end.At this stage I can pick any of them.

Last edited by SUPERBOOST; Jan 10, 2012 at 08:08 AM.
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Old Jan 11, 2012 | 06:09 AM
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http://shop.brutespeed.com/Differentials_c1099.htm
The best one to handle the abuse of your manual transmission is going to be the Wavetrac, shown at the above link.

http://shop.brutespeed.com/Moser-775...Moser-7750.htm
Moser people go with the Ford new style/Torino housing ends shown above, they seem to be the most popular ones used today. Bob
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Old Jan 11, 2012 | 07:26 AM
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Thanks for the info Bob,read the description on the wavetrac.It shure looks like the state of the art piece to use in a stout street car.I didn't know if any of the housing ends had an advantege in better seals and bearings or back spaceing.
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Old Jan 13, 2012 | 12:08 AM
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The stock posi can be very good with some simple mods. Google and you'll find them.

Al 95 Z28 S-60 w/spool
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