ok so i own a total of (3) dodge rams i got 1 2010 crew big horn 2wd hemi with a 3.92 gears and a lsd i gave my 2011 dodge small back doors 4.7L to my little brother and i drive my 2010 crew cab big horn hemi with 3.21 gears and a open rear end. i line up with just about everything. the 3.92 truck used to be the quickest of the bunch until i bought a diablo. the 3.21 truck barley stood up with the 91oct tune. then i rasied the shift points to 5900rpm and now the 3.21 walks the 3.92 truck. i raced my cousins 2009 little back door hemi on 17's with flowmaster exhaust and k&n filter and he does stand a chance. i raced a 2004 duramx crew with edge evo,afe intake, and 5inch turbo back exhaust and we stould fender to fender and he was on his highest tune. i thought i met my match thow against a single cab 2001 silverado with a 5.3L 2wd shortbed with long tube headers,intake,tune,exhaust,cam,and a stall converter and 4.10 gears. we hit it at 30-35 mph and everytime i had him by a few feet until 115mph so far this truck has 15k miles runs great has 20in wheels and with tuner gets about 22mpg on the highway. i know alot of you guys hate racing in your 3.21 gears but top end there awsome. but just to add i hate racing from a dead my tuck dosent pull until 4k rpm.