Comparing the parts in a couple of F100 catalogs...

Chassis - My guess, they are the same
Cabs - don't know, again, my guess the front end should fit
Beds are the same 48-52, not sure about the fenders
Running boards are the same 48-52

Check with these guys and download their catalogs. Lots of good info even if you don't buy parts from them.
John's F-Fun Hundreds
or
Dennis Carpenter Ford Car, F-100 Pickup Truck, 8N, 9N Tractor and Cushman Scooter Restoration Parts
or
Sacramento Vintage Ford Parts, Inc. 888-Ford-100