I too was having a hard time for fronts, but finally went with a 235/80R22.5 front runners, they are a little taller than the backs, but fill the fender and look good.

Very good tires, but expensive. I bought used, like new, for $410 for the pair at an equipment auction.

I can measure both the fronts and the rears tomorrow or the next day an get back.

BaconFarms
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1948 GMC 2 Ton
1958 GMC 370-8
1965 GMC 5000
1970 Chevrolet C50