I have a 69 chevelle 4door,here's a pic. its not a granny car.

http://i109.photobucket.com/albums/n71/badkittykkr/db7c6e68.jpg

.I have the original 10bolt open 2.73 rear end in it. Car still pull 12.4 1/4 , cant wait to see what it gets after.

I wanted to know what other rear ends will fit my car with no mods, or very little modding of suspension. cant seem to find any 10 or 12bolts in my area and i'd rather buy something already setup and just drop it in.

The '68 to '72 Chevelle, El Camino and Malibu wagon, and '70 to '72 Monte Carlo rear ends are a direct fit. You could also put a new Eaton posi in the 8.2 10 bolt that you have now.