Double Coin Tires are a reliable premium imported tire. I have several sets on the rear of my rig. Make truckers use them.
OP:
I have 245/ 19.5 Toyo tires on the front. They help on many rutted roads to prevent wander.
I have the 8r/19.5 on the rear.
I have not incurred any problems with this set up.
I would verify the diameter or circumference of the makes on the rear.
Bud
USAF Retired
Pace Arrow
2003 Chev Ice Road Tracker