A few months ago, I ordered the GM resto pack. For some reason, they couldn't find the book for 46, so they sent me a 42 instead. Included was a vehicle spec book which lists RPO's (Regular Production Options). It says that for the 1-1/2 ton trucks, optional "special front fenders" were available for "7.50-20-8 ply and larger tires".
If anyone has a spec book for 1946, I would gladly reimburse you for copies, but I'm assuming that the 46 is probably about the same except for the addition of the 2-ton trucks.
So, yes there were probably a lot of 1-1/2 ton trucks ordered with the larger tires and fenders out there, except mine wasn't one of them.
So, the way I understand it (and please correct me if I'm wrong), there were three sizes of front fenders---a) 1/2 and 3/4 ton, b) 1 ton and 1-1/2 ton with small tires, and c) 1-1/2 ton with large tires and 2-ton.
For an example of this I noticed Marvin Ribbich's 1-1/2 ton dually panel about two-thirds the way down the Viewers Truck Gallery on Brad Brown's site:
http://www.brads41-46chevys.com/id8.html Then, if you look directly above his truck, Chris ??? shows a picture of the larger wheel openings.
My truck is like Marvins, so that's why I'm looking for either 650-20 or 700-20's, which as Scott said (and I'm discovering) are getting very rare and hard to find.
Grigg, about your 19.5 rims---Did they come off of a 1990's 3500HD truck? I noticed that they also use the 10-lug rims. Is the hole spacing the same?
Thanks,
Bob
