4onthefloor, you are exactly correct. The 460 swap was AFTER he converted the original 2WD to 4WD using Chevy parts, so he wasn't too thrilled about changing out the front axle again. In addition, he just couldn't bring himself to hack up the Chevy enough to install the twin I-beam front end. I know many hours were spent trying to figure out how to rotate the F**d transfer case to run the driveshaft on the Chevy side, but to no avail. When he was running the 460, the front axle was not hooked up.