Hey there! If your truck's odometer has stopped working, chances are you need this little plastic gear. This 24-tooth odometer drive gear is the exact replacement for tons of Chevy and GMC trucks from the late 80s through 2000. Made from durable plastic that stands up to heat and wear, this thing just pops right in where your old broken gear was - no modifications needed. Fits Chevrolet C1500, C2500, C3500, K1500, K2500, K3500 from 1988-2000, plus the same models for GMC. Seriously, if your mileage isn't counting up anymore, this $10 part can save you from replacing the whole instrument cluster. Installation's straightforward - just match it up with your existing setup. Comes as a single gear (part number 924-396) ready to get your odometer rolling again. Pretty sweet for such a small part, right? Definitely double-check your specific model year before ordering to make sure it's the right fit. Way cheaper than dealing with a non-working odometer come inspection time!