Right Rear Rim on Farmall A is Cast Iron ?? Wow!

I just got around to reading the replies to my post a few days ago about original Farmall A rear rims. What I found most interesting is what Ben in KY had to say. He said "Originally the right side was cast and the other side steel to help balance out the offset motor." I never heard of such a thing....that's really interesting. Did the rest of you guys know about the one cast rear wheel on Farmall A's, or is it not common knowledge? Now I've got to ask the obvious question...when I'm out looking for rear rims for my '39 A how do I tell the cast one from the steel one? Is it obvious, like the steel one is smooth and the cast one is pitted? Maybe I've seen cast ones in the past and never knew it.....so what do you look for? It's hard for me to believe a cast rim could be durable enough to withstand the beating a rear rim would see without cracking, but it sure does sound interesting. Now I'm guessing if the A used a single cast iron rim it would be only used on the A, as the B was a tricycle and not offset and the C used a bigger rim, no? So are these cast iron rims rather rare? If anyone has a pic of an original cast iron A rim I'd sure love to see it.

I also have to say that I've only been on this board a few weeks but you guys are great. You're full of knowledge about these tractors and willing to share it. That's very cool. Thanks for all the info you've provided and all that you (hopefully) will provide in the future.

regards,
bob

Yes, I miss-understood. I was confusing "rim" with "wheel". Makes perfect sense now. Thanks for straightening me out.

regards,
bob

All "A"s are like that as well as others with off-set engines.