Question of Mopar Fans

I have a 1969 Dodge D500 Truck.
Can anyone tell me what size 1T, 1-1/4T, 1-1/2T etc., that D500 designator is?
I know how the old Chevy/GM numbers work, but Dodge stuff might as well be made in Japan for all I know about it.

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Thank you!

The only thing I could find there was that a D500 is a 2T w/19,000 GVW
but the VIN plate on my truck says it's a D500 and it's GVW is 23,000.
hmmm...

Looks like it has a box on it, so that may be a portion of it.
They all built the big ones for the customer's needs. Different axle ratios, different GVWRs, different PTOS. The GVW would change on the same chassis depending on factors too, since different states charge for what the truck is rated at, and if you add a heavy flatbed it would cut down on what you could load, for example.
Guess that the plate is the final answer, and adds 2 tons (4,000 pounds) to the info on the site.

As you can see, the designator 1T, 1.5T etc. isn't as important as the actual rating on the truck. This allpies to the old GM stuff too. I'd bet that you could find couple similar year model GM 3500s with different tag info.
Fords get really crazy, where they had a ton of fleet sales to U-Haul and those trucks are different than every other Ford of the same year. Same with other large fleet sales, but that is the most visible.

That isn't the half of it.
The box is 14' long
It's a clean air vehicle, fueled by propane.

The paperwork says it's got an unladen weight of about 8500 lbs