8.25 diff swap

I want to swap in a limited slip unit into my 8.25 axle ,I also want to retain the 3.21 gears that are in there ,there was no leaks or whines and ring and pinion are in real good shape ,what I am wondering is will I get away with placing the lsd straight in and adjusting the side adjusters until I get a good contact pattern ,obviously I know doing the whole lot would be better,but I really have not got the money at the moment to have the ring and pinion dialled in

thanks