Just wondering if anybody here is running these tires in the 38 or 40 size variety. I'm thinking the 38s might be the ticket for me, the price is definitely right compared to all the other brands. how long are they lasting you guys? I'm REAAAAALLLYYY tempted to go with the 4D's, but I'd have to get me that RK 3.5 X factor mid arm suspension as well as regearing to 5.13s which is already on the short list. the 38s are 331 and the 40s are 339 or something on discounttiredirect. this is what's really getting me thinking, for 8 dollars more a tire........The front axle is getting sleeved and gusseted regardless when it gets regeared this fall.