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-   Pontiac - Boost (https://forums.maxperformanceinc.com/forums/forumdisplay.php?f=495)
-   -   Looking to change my differential (https://forums.maxperformanceinc.com/forums/showthread.php?t=839124)

Rob Roy 03-29-2020 12:23 PM

Looking to change my differential
 
I have a Ford 9" 31 spline detroit locker in my turbo'd 67 firebird. The locker is obviously not very street friendly. I was considering some type of limited slip and ran across the speedmaster torque worm. Tried adding a link but was not successful. Looking for some advice before I pull the trigger. Thanks in advance

charlie66 03-29-2020 01:57 PM

Is this the one...

https://www.summitracing.com/search/...tOrder=Default

Rob Roy 03-29-2020 02:59 PM

Yes, thanks

charlie66 03-29-2020 03:26 PM

I have a true-trac in my street car and have no problems. Had it since 2009 .

Rob Roy 03-30-2020 01:20 PM

Appreciate the response

blueghoast 04-03-2020 01:40 AM

I run spools in all my cars and no problems whats so ever.

GT.

Tom Vaught 04-03-2020 09:00 AM

I run the SOFT LOCKER 9" center section and no issues.
We ran the old locker in our boosted mustang for one week and then removed it.

Tom V.

Rob Roy 04-03-2020 11:22 AM

I would probably have less of an issue if it didn't unlock at all similar to a spool. It's pretty harsh, bucks the car and makes you think something has broke. It's probably compounded for me by the fact that it's a stick car.

Tom Vaught 04-05-2020 10:14 AM

3 Attachment(s)
More info, That system works very well with the correctly engineered parts.

Tom V.


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