i just bought my first 6.2 (and 1st diesel for that matter) truck and noticed something kinda interesting. i saw a sticker on the driver's side valve cover that sure enough was the mr goodwrench 6.2 sticker. so now im wondering if it is in fact a mr goodwrench. i mean they dont sell just the 6.2 sticker or the valve cover w/ sticker do they? dunno what she sounds like yet as it has ripped off oil cooler lines and a couple missing hoses and alt.. and belts but other than that is all there.