Need to upgrade to a dana 60 with 35 spline axles....
What engine/ transmission combo do you have that makes a 9 inch too weak?
I have a full floating 9 inch for my 1940 GMC, and one installed in my 1959 GMC. Both rears are set up for 31 spline axles. The full floating 9 uses a hub to carry the weight of the vehicle. The axle, which is splined on both sides transmists the torque. This is an extremely robust setup for a pickup. In my 1959, this setup is sitting behind a big v8 and a 5 speed transmission. I sought out the full floating 9 because there were many parts available for the 9 inches, I could get a new one made however wide I wanted, It already came with disc brakes, and I was able to keep the stock 6 lug configuration.
