Welcome to the Bolt wave

Chicago Tire carries 7.50x20 Highway tires.

http://chicagotireinc.com/7.50-20-tires/

Nebraska Tire has 8.25x20 Mud/Snow Lug tires.

https://nebraskatire.com/truck

I looked for years to find 7.50x20 Mud/Snow Lug tires for a fire truck project and never did find them...highway tires just wouldn't look right on the rear of a fire truck to me.

If it were me I'd put 7.50 Highway on the front and 8.25 M/S on the rear.

The 7.50's are about 36.5" tall and the 8.25's are about 39" tall, so the rear tires will change the final gear ratio if you go taller.

Mike B smile

Last edited by Mike B; 08/26/2019 10:48 PM.
Mike Boteler

1956 Chevy 3100 Resto Rod
1952 Willys M38 Army Jeep
1983 Jeep CJ7 Laredo
1984 Jeep CJ7
+++++
Silver Spring, MD