I drove it a few more miles and pulled out the rear axle. Put in the 3.08 posi rear end out of a 93 caprice. I just got it back on the road today. I need to put in my new electric speedometer next to tell how fast I'm running. The 3.08 gears don't seam to high. This engine has a lot of torque. I'm running the 261 cam shaft and knock sensor. The knock sensor does not pick up the solid lifter noise. I thought this might be a problem.