Review on 🚦 ACDelco 3987921 GM Original Equipment Automatic Transmission Speedometer Driven Gear - Reliable Replacement for GM Vehicles by Niko Knight

Pros: The part worked great. Trans TH350, 26.5" Wheel, 3.73 Speed Tip: More teeth mean lower readings, fewer teeth mean faster speeds. My speedometer reads 10 more at 60 mph. 17% fewer 18-tooth gears. Number of teeth increased to 21, perfect : Why would this seller require a signature for delivery?! This is the $6 part. I appreciate fast shipping but it's pointless if they try to deliver it when I'm at work. Well the part worked, the truck is right. So don't get mad. Edit: Upgraded to 5 stars. Maybe I was a bit salty when I wrote the original review. But my truck stood for another day because signs are required.