posi slipping

[00GTpony]

I'm pretty sure my posi is slipping. How do I correct that

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[GDTrumbo]

Need more info.

# of miles on current fluid/friction modifier? ... Should be changed @ 80 to 100K unless it's a Cobra car.

Lots of tire spinning launches?

Symptoms? Noises? Spins only right wheel?

May need clutch rebuild kit.......

GT

 

[bdcardinal]

you dont have posi unless you have a GM diff in there.

 

[Brute03]

if you're getting peg leg burnouts, your trac lok is on its way out. mine started giving up the ghost at 65k

 

[Blown Spring GT]

You need to pull the diff apart, remove the carrier. You then have to have the clutches replaced in the limited slip carrier. It isn't a fun job. Alot of people try and add an extra shim in the clutch pack to make it hold more power and last longer.

 

[Flghtmstr1]

You need to pull the diff apart, remove the carrier. You then have to have the clutches replaced in the limited slip carrier. It isn't a fun job. Alot of people try and add an extra shim in the clutch pack to make it hold more power and last longer.

What he said. I did the "extra shim" trick because I was going supercharged, and so far, so good. Also, use Mobil 1 75W-90 with just a tad of Ford friction modifier if it needs it.

 

[AdRock]

Since yours is already slipping try changing the fluid with some regular 75w-140 that does not contain friction modifier and don't any at all to it. The friction modifier actually helps the clutches slip a little to keep from chattering around corners. If yours are on their way out might as well try this and see if it works to help them grab better until the clutches go completely out.