Any tire guys out there guess the width of my "mags"?

[71CHEVYSHORTBED402]

This truck is fairly new to me. Nothing quite like turbines in my mind. It's a chagrin 16.5" tires are rare.

Not that I need rear tires (fronts soon), but I did receive a quote for the rears at $550 each. Off road tires I guess, it's all they have. The front wheels are a little more "tamed", because the wheels are thinner and you can locate tires. I wouldn't mind the same size wheels on the rear, if I can find them.

Anyway, does anyone know the width of these wheels giving you the tire size? Appreciate any input. I'm not aware of many wheel options for 8-lug 3/4 ton. This truck is just a driver. Thank you.

Front Tires: 9.50R16.5LT

Rear Tires: 33 x 12.50 R16.5 LT


Edit: With more research, I believe the rears are 9.75". There are a few available on Ebay, and according to Summit, the smallest tire available for a 9.75 x 16.5 is what's on there now, 33x12.5x16.5. Cheaper than $550 too. Still don't know the fronts.