Posted by Clint Dixon [172.69.130.189] on Wednesday, September 09, 2026 at 10:12:17 :
In Reply to: Re: 16" to 20" wheel conversion posted by Jerry in Idaho [108.162.246.116] on Tuesday, September 08, 2026 at 20:49:01 :
The 8.25x20 tires were roughly 3" taller than the 9.00x16 tires. The increase in height was only about 10%, just a little over 1.5" increase in rolling radius.
I think the real increase came when my Grandpa's cousin used 7.50x 20 tires. They had the same narrow width as the optional 7.50x16 Power Wagon tires to enable digging down through the muck to find traction. And, they were taller with an overall diameter greater than the 8.25x20 tires.
I agree, chains would be my choice for better traction. Source 20" wheels with the intent to gain faster road speed (and/or slow the engine rpms) as that is where the benefit in slightly taller tires lies.
Junior
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