About Us...

We are your premier service and repair shop located in the upper Midwest.  We repair, calibrate and install all types of electrical and mechanical speedometers, tachometers, taxi equipment, and other instrumentation.

At D & D Speedometer we manufacture custom flexible shafts, speedometer and tachometer cables for all applications.  We also manufacture many types of ratio adaptors.

As a division of D&D Instruments, we carry major brands of gauges, instruments and electrical products, view our product linecard here.