Overview
The Rough Country Dana 44 ring and pinion set, part 54448822, is a 4.88 ratio gear set for the Jeep Wrangler JK rear axle. Based on the product title and description, it fits the Jeep Wrangler JK from 2007 to 2018.
The manufacturer explains that after a lift and larger tires the factory gear ratio is off, so the driveshaft and engine turn more slowly. The 4.88 is a numerically higher gear, which adds low-speed torque multiplication for that setup.
A lift and larger tires move the factory gearing out of its intended range, slowing the driveshaft and engine and costing some power and economy. A 4.88 ratio helps recover that loss, and the gears are smooth-finished and designed for durability. Because a 4.88 is numerically higher, it also raises engine speed at a given road speed, so weigh that trade-off against how the Wrangler is driven.
Key features
- Smooth-finished gears designed to run quieter than some alternatives
- 4.88 ratio for the rear Dana 44
- Durable construction
- 10-year warranty against defects
Choosing a gear ratio
The gear ratio decides how the engine and driveshaft turn at road speed. A numerically higher ratio multiplies torque, which helps with larger tires and slow crawling, but it also raises engine speed on the highway. Tire diameter, transmission gearing and how much the Wrangler is driven all shape whether a set like this suits the vehicle. Those are the points to weigh before buying gears.
Gear sets are usually bought with other parts. A master install kit covers bearings, shims and seals, and a locking differential is often considered at the same time. After any gear change, check the tooth pattern and listen for noise on a test drive, and recheck pinion depth and backlash if the gears have been disturbed. Keep gear oil at the correct level and change it on schedule.
Specifications
| Brand | Rough Country |
|---|---|
| Part number | 54448822 |
| Axle location | Rear |
| Axle type | Dana 44 JK |
| Gear ratio | 4.88 |
| Warranty | 10-year warranty against manufacturing defects |
Vehicle fitment
Based on the product title and description, this 4.88 rear set is for Jeep Wrangler JK models from 2007 to 2018.
Wranglers from 2018 on, such as the JL, are not covered. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Pinion depth and backlash must be set with gauges, and a master install kit is normally bought alongside the gears. Check the tooth pattern before the rear axle carries load.
What’s included
One 4.88 ring and pinion gear set for the rear Dana 44 axle.
Not included: the bearings, shims, seals and other install parts.
