K&W 402508 Trans-X Posi Trac Limited Slip Gear Oil Additive - 7 Fl Oz

Makes slippery things slipperier

As described. Does the job!!!

great price I assume it works like the factory stuff.

Smooth posi traction.Product works.

:)

Works great. Took the chatter away from the clutch pack.

Diff sounds good

Installed new gears which I purchased here and since my 67 GTO has Safe-T-Track, it requires this additive. Works as it should, just pour the complete contents into the rear end prior to filling with fluid. This helps it mix itself when you add the diff. fluid (which I also purchased here).

Only need 1 tube & no chatter

good product