limited slip friction additive

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limited slip friction additive

Postby mirage_brat » Thu Mar 10, 2016 9:28 pm

I was wondering what kind of have much limited slip additives I should use when I install the posi diff in my car
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Re: limited slip friction additive

Postby Monza Harry » Thu Mar 10, 2016 10:04 pm

I am a Die Hard Castrol guy so here is a link to there US page for Diff oils. http://www.castrol.com/en_us/united-sta ... l-oil.html You should be good with any name brand including AC/Delco/GM's brand. Your manual will cover how much. or use your favourite gear oil and a "Modifier" http://www.redlineoil.com/product.aspx?pid=41&pcid=4 [all the major brands carry some version of this, as well as the chains O'Rielly's AutoZone etc.] Harry
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Re: limited slip friction additive

Postby mirage_brat » Mon Mar 28, 2016 2:45 am

What a better limited slip Auburn or Detroit Truetrac?
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Re: limited slip friction additive

Postby avewhtboy » Mon Mar 28, 2016 8:20 am

mirage_brat wrote:What a better limited slip Auburn or Detroit Truetrac?


The Auburn is a spring/clutch assembly where the Truetrac is all gears. With that said for longevity the Truetrac would be the better choice.

Some people don't like the locking unlocking action of the Truetac verses the Auburn.

I personally just put a Zexel Torsen posi unit in my Vega which is what came in some year Camaro's from the factory.

The True Trac and Torsen would not require any special additive to the diff fluid due to them being gear lockers rather than clutch locker.
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Re: limited slip friction additive

Postby cosvega76 » Mon Mar 28, 2016 8:25 am

I think you may be confusing the TruTrac with the Locker. I have a TruTrac in my pickup and there is no locking/unlocking action. The TruTrac is similar to the Torsen.


Chuck
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Re: limited slip friction additive

Postby chevyart » Mon Mar 28, 2016 10:06 am

het cosvega 76 i have a true trac for my ford 9 inch in my vega. what fluid are you using in your true trac. thanks art
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Re: limited slip friction additive

Postby mirage_brat » Mon Mar 28, 2016 3:14 pm

I have a mildly built 350sbc, th350 with shift kit, manual valve body and a 2900 stall converter as a daily driver... what one do you guys recommend
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Re: limited slip friction additive

Postby cjbiagi » Mon Mar 28, 2016 4:00 pm

You don't want a locker for a daily driven street car. A Auburn style with the traditional clutch packs would be good or a TruTrac. I have heard of a "gov lock" style used in some GM OEM vehicles and I have heard people shy away from that style, not sure if that is similar to the TruTrac?
The limited slip additive sold by GM is a friction modifier used to reduce or eliminate clutch chatter around turns. If you are not experiencing that issue you don't need it, it basically makes the lubricant more slippery so use it if you need it to correct a problem.
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Re: limited slip friction additive

Postby EVL VEGA » Mon Mar 28, 2016 6:03 pm

Spool. :mrgreen:
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Re: limited slip friction additive

Postby blownvega1 » Mon Mar 28, 2016 7:03 pm

I have the true trac works excellent smooth no additive abused it with a supercharger and now with twin turbo on street and strip would not hesitate to recommend it
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Re: limited slip friction additive

Postby mirage_brat » Mon Mar 28, 2016 8:13 pm

I had people tell me to get the truetrac over the Auburn... so where can I get a 26 spline 7.5 10 bolt truetrac for an 2.56 gear ratio?
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Re: limited slip friction additive

Postby hammerdown7 » Mon Mar 28, 2016 9:40 pm

Contact Jim at J.D. Race

viewtopic.php?f=5&t=44280
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Re: limited slip friction additive

Postby cosvega76 » Tue Mar 29, 2016 8:22 am

chevyart wrote:het cosvega 76 i have a true trac for my ford 9 inch in my vega. what fluid are you using in your true trac. thanks art


Art,

I'm just using 75W140 synthetic gear lube, no additives.


Chuck
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Re: limited slip friction additive

Postby mirage_brat » Wed Mar 30, 2016 5:03 pm

I decided to go with the auburn because im a little more familiar on how the clutch disc setup works and it has a 4 year warranty on it.
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Re: limited slip friction additive

Postby mirage_brat » Fri Apr 22, 2016 8:28 am

are there normally shims underthe carrier bearings from the factory?
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