here soon i will be installing a 3.73 gear into my 97 z28. i have the stock gm 10 bolt 2 series carrier with i believe a 2.73. i really have no idea on what kind of gear lube i should buy and how much, but i will for sure go with synthetic. Which brand do you guys prefer and what weight?

 

ok well i figured it out just about 2 quarts and limited slip, and i used 70w-90.