Unless you are absolutely killing the thing with huge TQ and dead hooking, all of the carriers work fine.
Don't buy into the 741 is weak BS...
Get a carrier with a gear ratio you want, put a SG (most like the clutch style) in it and go. There are some that like the tru-trac stuff too.
You should measure your driveshaft to make sure it's correct length. Going from a 7.25 to 8.75 should require a shorter driveshaft.