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Speedometer Long Gear, 42 Teeth

Part Number: RUG18760.34


  • Fitment: Universal Fit


  • With cable speedometer
  • White 42 teeth long gear


When changing tire size or axle gear ratio's your original speedometer gear will not register the same MPH as it did with the stock gears and tires. The MPH will either read higher or lower than what the vehicle is actually traveling. You will need to change the speedometer transfer case gear to the correct tooth count to obtain the proper MPH reading on your Speedometer. Use the Tire and Gear Ratio Chart to determine which Tooth Gear you will need to correct your MPH speedometer reading.

Question & Answers

1 Answered question

This Long Speedometer gear looks like the old 16T gear. Although the old gear has straight teeth, this has Helical style . Question : 1) will this gear match up to the drive gear or do both gears need to be changed ? Spicier / Dana 20 transfer case

Asked by Dean from New Hampshire on

Hi Dean The Speedometer Long Gear, 42 Teeth will not work, I checked back in my old books and the gear you need is no longer available. The best thing would be to find a doaner transfercase for some of the parts as a lot of the parts have been discontinued. Thanks

Answered by LWiff ext 4804 from New Hampshire on


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