Suggestions for conversion to a limited slip unit

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August 23rd, 2016, 11:54 AM

DewChugr

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Location: Central IL

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Suggestions for conversion to a limited slip unit

My 71 has an open diff, I want to convert it to a limited slip and change the gear ratio. The car is going to be a street car, no strip. What brands are good and where is a good place to get them? At what point do I need to worry about upgrading the axles?

Last edited by DewChugr; August 23rd, 2016 at 12:31 PM.

August 23rd, 2016, 01:04 PM

Qwik71442

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Join Date: May 2010

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Quote:

Originally Posted by DewChugr

Detroit Trutrac
https://www.summitracing.com/parts/d...a556/overview/

August 23rd, 2016, 06:40 PM

Gary M

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Join Date: Nov 2013

Location: St. Louis

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With my 8.5 differential I had a 3.23 and the Eaton Posi. Pretty good. West coast differential.

August 23rd, 2016, 07:40 PM

Fun71

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Monzaz or 507olds should be able to hook you up. They are both active on this site.

August 25th, 2016, 05:05 PM

monzaz

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Join Date: Jul 2006

Location: Richfield, Oh

Posts: 1,737

Quote:

Originally Posted by DewChugr

Need to really figure out what your going t do with the car for ratio. Most all Posi units will be fine for street operation.

Transmission kind, how built the engine is ...as too big of cam and low compression will need more gearing as it kills low end power at lower RPM range. and where your doing most of your driving...freeway light to light action just cruise etc.

Jim
J D