AutoMeter Traditional Chrome Electric Programmable Speedometer - 3-3/8 in. HX02121 D-Ring Backing Plate

D-Ring Backing Plate

100'' intake and 1

1987-1991 GMC R1500 Suburban

An additional wire is included for adding an optional on/off solenoid to stop fluid flow when the system is inactive

AutoMeter Traditional Chrome Electric Programmable Speedometer - 3-3/8 in. HX02121 D-Ring Backing PlateTickets are no fun. Calibrating a speedometer isn't a great deal of fun either. AutoMeter's 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