4 years now since I swapped a 12 valve/727 into a 2wd Ramcharger. Bolts right in, but you'll have to change the radiator support, or cut the radiator mounts off and use the mounts from the donor Dodge to move the radiator ahead. I changed the rearend to an 8 3/4 with 2.76 gears. It's been driven over 30,000 miles, (mostly by my girlfriend), and the 8 3/4 is still alive. I could have destroyed the rearend in no time myself! All stock, but rebuilt front suspension, and I used the 1 ton coil springs with 1 1/2 rounds cut off. Good ride height and decent ride. Stayed in alignment. 21-22 mpg. Sold it just a couple months ago, it lives in Omaha now.