This is my first time posting here, but a long time reader of this site. I have a 1982 Chevy K20 6.2/400/208. I wanna put a sm465 instead of the 400 because its going south on me. I was "told" that the 465 will go right in where i needed it to go, as long as i have the adaptor to go between the tranny and transfer since its already a 400 turbo. i already have a 465 but its from a 2wd, will that still work with it? i was told that i would, or will i have to get the 4x4 tranny, from what ive saw the only diffrence is the end of the shaft, the 2wd had threads for the nut and the 4x4 doesnt, but mabey someone can explain this to me. Second, i have a buddie that has the adaptor, but i cant look at it for another couple of weeks because im awfully busy here. Is there a coupling sleeve that goes between there or is the shaft long enough? Thanks for helping me out here, I love my truck and just wanna make it more enjoyable to drive. You guys are great here.