Reply To: Proper lubricants for 1702 Coupe

[George Teebay]

Steve,

For permanent lube in SoCal, I’d use 140 weight. But in your case, I’d be inclined to use 90 initially to help flush out the diff. Then put 500-1,000 miles on it and drain the diff (pull the bottom two or three cover bolts) while the diff is HOT and let it drain overnight. And you may wish to remove the cover initially and wipe out the cavity with lint-free cloths and a little solvent.

George