Truckeroy,
Thanks for the measurement!
That Helped alot.

I put my axle centerline (Rear) 37 inches from the center of rear most bed bolt hole on frame. It just measure my bed for a centered apearance. The 4- Link from the 'vette will not go back as the original torque tube rear did.

Most People move they axle 2 inches.
PS what rear are you using? I have a 96 Camaro posi w/ disc brake I wont be using.
Thanks Again, Ed