🚗 Drive with Confidence: Upgrade Your Ride!
The ACDelco 3987918 GM Original Equipment Automatic Transmission Speedometer Driven Gear is a high-quality replacement part designed specifically for GM vehicles. Manufactured to meet GM's original equipment specifications, this gear ensures optimal fit, form, and function, providing the reliability and durability you expect from a trusted brand.
| Item Weight | 0.02 Pounds |
| Item Dimensions | 2.9 x 2.5 x 1.1 inches |
A**R
part knowledge
End of speedo cable that hooks into 700-4 transmission on my S-10 chassis. Gear was stripped and that turns the speedometer in the truck.
E**I
just what I needed.
Now my speedo on my Cobra shows the right speed. Got two gears instead of one. Well , have a spare now.
N**N
Used a GPS based speedometer app on a smart phone to test
My speedo in my 1972 Corvette read about 10mph fast. I had a 21 tooth gear and went to this 18 tooth gear, speedo now reads within 3mph. Used a GPS based speedometer app on a smart phone to test.
C**N
Exactly What I Needed
My GMC Van needs a mechanical speedometer driven gear, Couldn't believe it....there it was....Same color and all...wow... The color is very important 'cause each of the many gears has differnt number of teeth and the color determines the number of teeth. Thanks good job
D**Y
Five Stars
Worked great. Direct replacement of oem
L**O
Five Stars
acdelco 3987918 drive gear was the gear I need
M**N
Five Stars
Works good.
Trustpilot
1 day ago
1 week ago