I was holding out to call Chase even though he'll be doing the swap. He's busy as hell and STAYS on the phone... Was hoping someone just cruising the site leasurely knew the answer. I need to look up my BOM numbers on my axle to get my facts straight anyways. I got a few days to figure it out.
Here's what the seller responded with:
My suggestion would be to call richmond, the 2810 is only interchangeable with a 70HD, ie factory 35 spline late model unit. The dana 80 Hybrid is essentially a dana 80 with 70 outers, the carrier has a larger flange to accomodate the larger 80 ring gear, but the differential internal dimensions are the same. If you look around the internet you will find that the 2710 fits the 94-01 dodge 3500 pickups, even though some are equipped with a "dana 80 hybrid" rear axle. The reverse is also true. You could conclude that the 2810 may be larger in diameter, however you have to remember the 80 hybrid utilizes the same internal case diameter meaning if it was any larger it wouldn't fit in the hybrid unit, needless to say it fit in my case just dandy.
