I feel like I'm on a wild goose chase. I looked at two other rims and they have differing numbers. I got a patent number, but it only gave me manufacturing data, no load rating.
I did find another number and it does cross to Mopar, but no load rating- 52057939AC. I found one with a Kurtz sticker and bar code and different number, but that doesn't seem to cross and I couldn't find a Kurtz wheel manufacturer.
I called my friend who gave them to me, and he told me a Denver Dodge dealer told him they were rated at 4,000 lbs. This was because it was a 8,000 lb axle and they made all the rims at 4,000 lbs to be half the rear axle rating. Makes sense, but no documentation for me to go to my trailer manufacturer and try to raise the GVWR when I upgrade the axles.
It doesn't make sense that there wouldn't be a load rating for the part number. I guess the only flaw with my thinking is that it is logical- lost my head. I agree that they should take anything load range E but that load has a spread from about 3,000 lbs to 3900+ depending on the tire. Wish I could nail it down.
Maybe I'll try a different dealer or even talk to a tire dealer. Any other thoughts?
Regards,
DB