DODGE: THE AXLE(S) ON ABOUT 160 CERTAIN RAM TRUCK VEHICLES WERE INADVERTENTLY BUILT WITH A 4.10 AXLE RATIO. THIS IS A NON COMPLIANT POWERTRAIN CONFIGURATION AND COULD IMPACT THE VEHICLE'S FUEL ECONOMY AND/OR PERFORMANCE. THE AXLE RING AND PINION(S) MUST BE REPLACED WITH 3.73 AXLE RATIO RING AND PINION(S). THE TIPM MUST ALSO BE REPROGRAMMED FOR THE NEW AXLE RATIO. CSC LETTER WAS RECEIVED. *PE