My book doesn't list the casting numbers, just the stamped "I.D." numbers from the factory. There are many fellow bolters that have this info and I'm sure they will be along shortly. As far as your parts compatability, I've never done the mix-n-match thing with the inlines before, so I can't help you there either. There will be someone that has along soon I'm sure.
Good luck with your fine truck,
Scott


Scott Ward

2 1948 1.5-ton Loadmasters
The red one and The snow pusher
1 1950 3100
1 1955.1 Chevy 6500
1 1954 Chevy 6500 2-Ton
1 1955 1st Series COE 5700
1 1963 K20 (454)
1 1964 C10 (350)
1 1951 1.5-ton Dump Truck
1953 and a 1956 Ford F800

Raising a teenager is like trying to nail Jello to a tree!