I have had (in order) a GMC 3500 dually with a 454, a GMC 2500 with a 350, an F250 with a 7.3 powerstroke, (2) different F350s (one dually, one not) with the 6.0 powerstroke, my old PowerWagon with the 6.4 Hemi (a 2500 with soft springs), and now this 6.7 CTD, a 2500 with the camper/plow/Snow...