Put spyntec shorties on my 2004.5, 2500 , 4 yrs ago, no problems so far. Installed them myself, with new ujoints, carli balljoints, synergy steering, Thuren adjustable track bar, Dodge boys box brace, and a new Dodge front driveshaft.
Nice when backing my horse trailer in tight places. I mostly leave them turned in when the weather is snowy. I didn't pick up any mpg, but I have 4:10 gears.
Craig
