Partsam 7 Pcs GM GMC Stepper Motor X27.168 Speedometer Cluster Repair Kit + 6pcs T5 37 74 Led Blue+10 Pcs T4.7 Mini Led Blue Bulb (7 X 27.168 stepper motor+6T5 Led Bulb Blue+10T4.7 mini bulb -Blue) Perfectly replace for the XC5.168 and X15.168 that are in your cluster from 2003 to 2006 GM GMC cars and trucks Part Number: x27 168, 25 168, xc5 168, x15 168, gauge repair Work in any gauge position and are the latest and greatest; Each Gauge has a stepper motor and the item will fit almost all Gauges Fixed problems like(caused by Motor Stepper):Gauge's sticking, shuttering;chatters,inaccurate;Gauge giving false readings;staying pegging out;Gauge dead,etc Please make sure you can handle this work, it may need some professional equipment and electronic knowledge of PC Boards;We have professional Manual on how replace it, email us if you need one