To find the gear ratio for *your* specific 1996 Dodge Ram 1500 4WD, you'll need to:
* Check the sticker on the driver's side doorjamb: This sticker often lists some key specifications, including the axle ratio. Look for something like "Axle Ratio: 3.55" or "Axle Ratio: 3.92." This is the most reliable source.
* Look at the Vehicle Identification Number (VIN): While the VIN itself doesn't directly state the gear ratio, a dealer or online VIN decoder might be able to provide some of the vehicle's specifications, including the axle ratio.
* Examine the differential tag: This tag is usually located on the differential itself (the housing on the rear axle). It will have the gear ratio stamped on it. You'll need to get under the truck to see it.
* Check your owner's manual: If you still have the original owner's manual, it might list the specifications for your specific truck.
Without knowing the specific options on your truck, it's impossible to give you a definitive answer. Common gear ratios for that era of truck ranged from approximately 3.55 to 4.10, but this is just a general range and not guaranteed to be accurate for your truck.