That would set me up for not being able to wheel at Clayton. I was leaning towards the gears about to take a ****, but I don't know too much about diffs.
If this is not an easy or cheap fix (less than $200), I would prefer to find another D30 or HP30 with 3.73s and bolt it in. As much as I need to re-gear, I don't have the money for it right now.