Thanks Steve and JIm. I know the S10 rear won't fit into the overall old look I am shooting for, but it won't be seen. I plan on putting the radiator and gas tank in the bed and putting a louvered tonneau cover over it, so no one will know what kind of rear I am running. The 3:73's should be good cruising gears, especially with the torque of the Olds engine. I ran 3:70's in my 27 for years and now wish I hadn't put the 4:30's in there.........and to think I was actuallly considering ordering 4:56's. How did we put up with 4:88's and 5:13's in some of the cars we used to have?

Don