installed the air ride, still not happy ,ride is worse in the front end of coach, trading it in!!!! the 6400 is apiece of s*^%@#t !clutch fan noise ,fuses melting, slides work,slides don't work ,cabin noise ,passengers not comfortable,bed motor not strong ,body cracks,abs lights, turbo farts and lastly driving on eggshells ,not knowing when injectors or turbo will blow out !! 99.99% 6400's have allthe same issues. they are all JUNK , please anyone thinking of buying one , GET IT OUT OF YOUR HEAD , THEY ALL SUCK :P
