the shop thats building a 9" rear for my 69 coupe sent me a diagram to fill in measurments of my current 9". pinion and seat angles, total length drum to drum, distance between the seats, etc. whenever i measure anything even 5 times i can still get it wrong so just looking for some comparison numbers. If anyone has ever done this and kept their notes or found a diagram on the net somewhere, it would be great if i could compare to make sure im not way off.
thanks,