I OWN A 2003 DODGE RAM 1500 2W/D. I HAVE BEEN IN DISCUSIONS WITH ENGINEERS FROM DODGE WHO TOLD ME THE LEAF SPRING VENDOR PRODUCED THE WRONG SPRING RATE BUT DODGE PUT THE SPRINGS ON ANYWAY. THE DEALER CALLS THE BOUNCE AT 65 MPH "NORMAL". I INFORMED THEM THAT THE 2 TIMES I HAVE TAKEN MY SON ON THE FREEWAY IN THE TRUCK HE HAS THROWN UP... THEY SAID "NORMAL"! KNOW THIS; THE ENGINEERS KNOW WHAT THE COMPANY DID, THE COMPANY KNOWS, I KNOW, AND NOW YOU KNOW. GO AND COMPLAIN TO YOUR DEALER, IT'S THE ONLY WAY THIS WILL GO TO A SERVICE BULLETIN. ON ANOTHER NOTE, THERE IS A SERVICE BULLETIN TO GET YOUR ROTORS REPLACED FOR FREE, THEY GRAB INCORRECTLY AND CAUSE THE SHUTTERING THAT WARPS ROTORS.*AK