Looking for 2.45 or 2.76 ring and pinion

The guys are correct about needing a matching carrier for the 2.45 and that's not the only gear set. There was one other and I cannot remember what it was. I think the split is 2.76 and up takes one carrier and "everything" under 2.76 takes another carrier. You might find the answers here:
The 8 1/4 thread