Re: IDing 40s steels. 4" or 4-1/2" wide? Easy how to.
Mart, I like the way you figure things out. Your next assignment is to make a small, portable gauge to tell if a swapmeet crank is 3 3/4" or 4" stroke. I've found exceptions to the clean out hole sizing ID.
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Owner/Operator of 'Jailbar Ranch' on the side of Mt. Pickett. Current stable consists of 1946 1/2 ton pickup turned woodie wagon with FH V8, 1946 Tonner Pickup with 226 H six, 1979 Toyota landcruiser wagon, now wearing 1947 Ford Jailbar sheet metal. 'Rusty ol' floorboards, hot on their feet' (Alan Jackson)
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