It's interesting that there are so many with the 3.07, but I guess with the 32RH it works on the highway. For around town it would suck though. I've just only ever seen the 3.73. I'm wondering if the fact that all the 32RHs I ever had or worked on came with a Dana 44 rear?
That would be why. I've never seen a Dana 44 with 3.07s here in the US. I think it's more common in the UK. Maybe we sold them out rejects.