The 20's and 22.5's are direct swaps for each other and a truck could be ordered from the factory with either rim size.

So, here's how they match up;

8.25x20 = 9.00x22.5

9.00x20 = 10.00x22.5

10.00x20 = 11.00x22.5

Make sure the rim width you go with is correct for the tire size you want to use.

Hope this helps,

Mike B smile

Mike Boteler

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