Howdy, I am mocking up the driveline on my 41 chevy 3/4 ton. I need to drop the rear of the motor 3 degrees. I was wondering if I could take that measurement from a flat spot on the block? for example where the distributor mounts or the thermostat in front. All I have is the block. I really need help. Everything is centered up between the frame rails. any help or suggestions are appreciated. thanks James
