My truck had dry-rotted 8:25X20:00's,when I bought it. I use 8:25X20:00's,("Hi-Way") tread,on the "steers",and 4 "Armstrong" (9:00X20:00's,for my "drivers".) I use the origional rims,and have had no problems. Probably put 1,200 miles on them,since purchased 3 years ago. I wouldn't recommend 9:00's,for the fronts,though,due to steering clearances,but the taller rear tires help gain speed,more M.P.G. I was a little disappointed with the slight "dry-rot" issue,when I had the tires mounted. Stress cracks didn't appear,until tires were inflated,(naturally). Even though they were never used,they sat for years,in a warehouse.This doesn't affect bias-ply tires near as much as it does radials. I'd ask first,to see how long the tires have been stored/date of mfg. I gained about 5 M.P.H.,by switching to the taller tires,and I LIKE the tread design. Mine are "Bi-Directional",which means that traction is accomplished,both forward and reverse. You may check out my photo's and video's to see the tires. Hope this helps.
Last edited by wetwilly5757; 08/05/2013 3:17 PM.