Hey guys I want to get a 4:11 or 4:10 for my 69 chevelle, I got a 69 el camino 12 bolt from a wreck car and put it in my malibu, My question is when I go to get a gear and posi for this, they say for a truck or car 12 bolt, Is there a difference in the rear ends, bolted up perfectly..next ? is what gear would you suggest, I was thinking of a RICHMOND...ok thanks again

El Camino = car. Get the Eaton posi as it is stong and rebuildable for the future.
I have used almost every manufacturer of gears, and they all have worked fine as long as setup correctly.