Thank you for the specific description, Roy Rodgers!

Got it- two-piece wheels with a lock ring like the service manual describes for the 3/4-ton.

It is very helpful to be able to accurately describe the exact type of rims to the tire shop since I am communicating from out of state.

Thanks also for the confirmation on the tire size working and needing the tube. (I guess the tube is self evident now since they are not one-piece wheels)

Best,
Michael