Tanman_2006
Member
Wow! Did you get 40K out of the stock crapper Firestone's??? If so, that's the best I've heard of and there has been a lot of discussion about it. Mine were at the tread bars @ 29K.
I used to run nothing but firestone and always got 40-50k on my half tons. My '18 ram had the rear tires air to 90 when I got it, doesn't help tire life or my back.