GM Speedometer Cable Adapter for Tremec T-5, TKX, TKO, T-56 and Magnum 6-speeds. Machined billet design NO MORE LEAKS! - American Powertrain - TREMEC Conversion Specialists
ADAPTER, SPEEDOMETER GEAR GEAR RATIO, STRAIGHT - #17294-1A - National Parts Depot
Stewart Warner Speedometer Gear Reducer Ratio Adapter 666F V8 .9743Y GM Trans | eBay
Amazon.com: Speedokote SMR-870 - Universal Medium 65-80°F Urethane Grade Reducer, One Gallon. If in California, Delaware, or Maryland, we will ship SMR-0075 0 voc reducer : Automotive
Speedometer Adapter Ford to GM Screw On Cable | MDL
AutoMeter Mechanical to Electric Speedo Adapter – Three Pedals