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I know how to swap 3rd members, but this is my first posi diff. What rear gear lube should I use and what additive?
This is a limited slip unit that utilizes the Trac-Lok springs and center block and has heavy duty steel friction discs.
Just want to make sure I don't fry this when I put it in. Oh yea, the guy who built it recommended a 500 mile break in but didn't go into details on the method. (ebay) Suggestions?