Is an 8 1/4", 2.45:1 diff housing exclusive?

That would point to a slightly taller tire, with a rollout of 84 inches or 26.76 tall,
like ~215/75-14, or maybe 225/70-14

If you have a 64 cluster in there, then you have a Commando box, my favorite.

Commando! I love that!! Very manly. And my wife is always encouraging me to go commando.:rolleyes:

The previous owner put 205/50R17s on the car. Speedometer is off by 10%. Odometer is off by 8%.

This 2.45 rear end is a drag. I'll keep researching, and at least keep an eye out for what ever the best solution for me ends up being. Maybe I'll stumble over the parts while I'm learning how to mig weld, fix the windshield washer, dash lights, and installing the 12 volt plug for the wife's heated motorcycle jacket (more top down time!). They say even a blind hog finds an acorn once in a while.