Highway RPMS ?

I never been in a slant that didnt have a 2.76 rear. That's saying I've been in only a few slants but they were all 2.76, except Raj's that had a ridiculous 'Doba 2.40ish rear gear. New oil, filters, coolant flush, roll of duct tape and drive it!
I thought for SURE mine was a 2.94, but when I put it back in from having the 3.90 sure grip in it, there it was. A set of 3.23s. No wonder that little 170 was so peppy. lol