Posi Traction Friction Modifier, GM / Dana Rear Ends

Posi traction additive, aka friction modifier for all GM and Dana rearends - only!!!

NOTE: Not to be used in Ford 8", 9", or 8.8" rearends with clutch disc type traction locks.

The only application for this fluid in a Ford rearend would be when an Auburn style posi traction unit is being used.

4oz bottle