so i've found 2 early 90's chevy 1500's with 5 spd trannys and im considering swapping out my turbo 400 for a manual however i dont really know alot about chevy's manual transmissions except for the sm456. my guess is that these trucks have the nv4500? or do they have something else that i dont know about? these seem to be way to cheap though beacause from what i've heard the nv4500's are pretty pricey. any help would be great thanks guys!