I just got my moms 1974 Monte. She has had it forever. I put a mild cam, manifold and headers, series 10 flow masters on it and new 650 Edelbrock carb. I would like to find a posi rear with 373 gears in it that I could swap the whole rear out. What rears fit the bill? Thanks

 

Finding a posi with specific gears might be pretty tough as these cars are getting older. Easier option would be buy the 3.73 gear set and buy a posi spool. I got a Lock right from Richmond gear for less than $400 , works great and is designed to release so you can make corners.