AutoMeter Sport-Comp II 3-3/8in 0-160MPH In-Dash Electronic Programmable Speedometer (3688) YMM_2001_2006_Chevrolet_Silverado_2500_HD_I_GMT800 3 mm ensures proper engagement

3 mm ensures proper engagement within the wheel hub

Whether you're customizing your vehicle's lighting

Engineered to enhance handling and driving dynamics

Built with a focus on streetability

AutoMeter Sport-Comp II 3-3/8in 0-160MPH In-Dash Electronic Programmable Speedometer (3688) YMM_2001_2006_Chevrolet_Silverado_2500_HD_I_GMT800 3 mm ensures proper engagementTickets Are No Fun. Calibrating A Speedometer Isnt A Great Deal Of Fun Either. Autometers Electronic Programmable Speedometer Makes Short Work Of Both, Providing An Easy To Install And Easy To Calibrate Solution That Will Help Keep Your Speed Exactly Where It Needs To Be. Compatible With Most Factory Speed Senders, You" Ll Wonder Why You Ever Struggled With A Speedometer Before. Calibration Is As Simple As A Two Mile Drive, Or For Even Easier