well first off, thanks for the help on the last ?, now, i have a 06 3500 srw reg cab, first ? is has anyone measured or looked up the rear overload spring you get with the drw vs srw i'd like to put the extra spring and bumpers on this truck. next has anyone changed there center seat out to one with the fold down center, is a unbolt and rebolt or is there more to it. thanks. oh yea i hit 6k miles and my mpg is at 19-21, loaded 11-13 love this lbz
