Speedometer Driven Gear
WARNING: This page does not describe the selected car, but rather 124 other vehicles, including the 1991 Chevrolet Pickup, 1991 Chevrolet Cab & Chassis, 1988 GMC Vandura Special, 1988 GMC Vandura, and 1988 GMC Value Van. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Speedometer driven gears come in 3 different tooth sizes. Driven gear and matching sleeve must correspond to axle ratio. Never turn sleeve in transmission case as gear damage will result. Shaft center line is eccentric to outside diameter of sleeve.
Install driven gear into sleeve. Install driven gear assembly into case. Install retainer with tangs in sleeve positioning bosses. Install and tighten attaching bolt.