I have an '09 Ram 1500 with the Hemi; test drive the 2, believe me opt for the Hemi. the only problem with the 1500's is the rear coil springs. the only model have not seen sag was the TRX but not offered anymore, make sure the GVWR sticker in the door is the highest available with the tow package offered. but a set of Timbren SES corrects this.
Frank and Ann
2013 Ram 2500 HD, 4WD, CC, SB, 5.7L
2013 Jayco 228BH