Hello

I am doing a scratch build project in 1/16.. It uses some 1/16 tank parts that I need to know the sizes of. Can someone please tell me if a 1/16 Walker Tank and a Pershing Tank have the same Road Wheels and Main Sprocket and Idler Wheels and Tracks? From on line pictures they look like they are BUT I can`t be sure without in hand comparisons.
Also the transmission gear box, what is the shaft that drives the sprocket considered; Long or Short?

Finally:

1) What is the diameter of a Walker / Pershing Road Wheel and how thick are the pair?
2) What is the diameter of the drive shaft that goes to the sprocket?
3)) Could Walker tracks run on Pershing Tracks and vice versa?

Thanks for your help and Time.
George