Overview
The Crown Automotive 52067632 is a 32-tooth speedometer drive gear for the NP231 transfer case. When tire size or axle gear ratio changes, the speedometer can read higher or lower than true road speed, and a gear with a different tooth count can bring the MPH display back in line. Crown Automotive directs buyers to its Tire and Gear Ratio Chart to choose the correct tooth count.
Key features
- 32 teeth for the NP231 transfer case speedometer drive
- Nylon gear on a steel shaft
- Corrects speedometer error after tire size or axle gear ratio changes
- Described by the brand as a direct fit
Nylon gear care
Nylon speedometer gears are used because they are light and run quietly against the mating gear. The tradeoff is that nylon teeth can chip if grit gets into the drive or if the gear is forced during installation, so it should be handled with care and kept clean. A steel shaft gives the gear a stable bore, but the teeth still need to be seated fully and free of debris.
Before fitting a new gear, wipe the bore and the shaft clean and check the mating gear for wear or chips. A gear that is not fully seated can cause noise, erratic readings or early wear on its teeth. Keep the old gear aside until the new reading has been confirmed, so you can compare the teeth if needed.
- Clean the bore and shaft before fitting
- Check the mating gear for chips
- Confirm the gear seats fully by hand
- Keep the old gear until the new reading is verified
Specifications
| Brand | Crown Automotive |
|---|---|
| Part number | 52067632 |
| UPC | 848399015256 |
| Tooth count | 32 teeth |
| Compatible transfer case | NP231 |
| Gear material | Nylon gear with steel shaft |
Vehicle fitment
It is a direct fit for the NP231 transfer case, so check your transfer case and current tire and axle gear setup before ordering.
Confirm fit for your vehicle’s year, model and trim before ordering.
Installation notes
Have a 6035709 o-ring ready before the gear is swapped, because it is not supplied and the factory o-ring can only be reused if it is in good condition.
What’s included
A 32-tooth speedometer drive gear.
Not included: 6035709 o-ring, which must be purchased separately unless the factory o-ring is reused.
