* Transmission type: Was it equipped with an automatic or a manual transmission? Different transmissions have different gear ratios in each gear.
* Transfer case: The transfer case (for 4WD) also has gear ratios that affect the final drive ratio. It might be a 2.72:1 low range, for instance.
* Axle ratio: This is the most significant variable. The rear axle ratio (and the front axle ratio, if it's 4WD) could be several different options depending on the factory configuration and any aftermarket changes. Common axle ratios for this Jeep included 3.07, 3.55, 3.73, and 4.10.
To find the specific gear ratios for your Jeep, you need to:
1. Check the vehicle's specifications: Look at the sticker on the driver's side doorjamb or in the owner's manual. This *might* list the axle ratio.
2. Look at the axle itself: The axle ratio is often stamped on the differential housing.
3. Consult a repair manual: A repair manual specific to your year and model Jeep will list all the gear ratios for the various components.
Once you know the axle ratio and the transmission/transfer case ratios, you can calculate the overall gear ratio for each gear.
