8 3/4 vs 8 1/4 weight

Everybody’s gonna think I’m crazy, but since my engine is mostly stock, I’m considering swapping the 8 3/4 for an 8 1/4. IF it saves weight.
OK I’m ready...Bring it

thread is over two years pld but here is my opinion. you'll need a different length driveshaft. seems like a waste of time weakening the rear end like that for a minimal (if any) weight savings.. but hey, its not my time or money so go for it..