The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post

**pjmoreland** · 03-07-2006, 11:22 PM

Does your transmission have an electric speedometer output right now? If so, you'll need to replace the speedometer output with a gear style. You'll need the drive gear that mounts to the transmission output shaft, the driven gear that the speedometer cable connects to, and the housing that holds the driven gear (three sizes available depending on the driven gear size).

http://www.73-87.com/7387garage/drivetrain/spdgears.htm

http://www.73-87.com/7387garage/drivetrain/speedo.htm

http://www.tciauto.com/tech_info/speedo_gears.htm

03-07-2006, 11:22 PM	#4
pjmoreland Senior Member Join Date: Jan 2005 Location: CA Posts: 6,241	Re: 700r4 Speedometer with 20's Does your transmission have an electric speedometer output right now? If so, you'll need to replace the speedometer output with a gear style. You'll need the drive gear that mounts to the transmission output shaft, the driven gear that the speedometer cable connects to, and the housing that holds the driven gear (three sizes available depending on the driven gear size). http://www.73-87.com/7387garage/drivetrain/spdgears.htm http://www.73-87.com/7387garage/drivetrain/speedo.htm http://www.tciauto.com/tech_info/speedo_gears.htm Last edited by pjmoreland; 03-07-2006 at 11:24 PM.