isuzu rear end

i have a '90 isuzu with drums brakes in the rear. i just a parts truck with disc brakes out back. i want to switch it to disc but i want to know if there is anything i have to worry about. or is it a straight switch?

i think its a esay swap im about to do the same thing but im gonna nerrow it first

It can be swapped out directly, but if you really want to be safe, you should plan on or take out and swap in the brake booster out of the doner truck. Other than that, the only down side to the disc rear-end is that it has a big bore center(unlike the Drum which is just flat). If you are running a GM wheel with the smaller center bore and all you did was grind down the tabs on the front, now you will have to modify your rims. Good luck.