Project "Insert Really Cool Title Here"

[kerber63]

Since I was running drop springs and blocks, I put in a c-notch just to make sure the suspension would travel. At that time, I started crunching numbers to see how fast I could go with the new transmission. I was running my stock 3.73 open rearend with fresh internals and axles. I calculated that in 6th gear, to be going 70 mph, the motor would be turning 1500 rpm. That was a little low for me, since I would almost never be able to use 6th. So I started looking around for something different to put in back. A buddy at work told me he used to have a '65 suburban, and still had its rearend laying around at his place. He wasn't sure what the ratio was, but he gave it to me for free. I tore into it right away, pulled the cover right away and found a . . . posi unit staring me right in the face. 4.11 posi put me at 70 mph at 1650. It went straight in, of course.