Overview
The G2 Axle and Gear 5.13 front ring and pinion, part G/21-2151-513R, is a Dana 44 AdvanTEK gear set. Based on the product title and description, it fits the front axle of 2018–2022 Jeep Wrangler JL models.
The 5.13 ratio is among the most numerically aggressive gears offered for this front axle. It gives the strongest low-speed torque multiplication in the group and turns the engine faster at a given road speed.
Each axle takes its own ring and pinion, so a 5.13 front set is for the Dana 44 front only, not the rear. Confirm the axle location on your vehicle before ordering, and keep the rear gear ratio chosen separately.
Key features
- Forged 8620 steel for a strong gear base
- Precision-machined to OE specifications
- Heat treated for durability
- Lapped surfaces for smoother running
Before you buy
A ring and pinion set sets the final drive ratio between the driveshaft and the front axle shafts. It controls how quickly the vehicle picks up speed, how hard the engine works at highway speed, and how loud the gear mesh sounds. Because the front gears turn with the front wheels, a change here also changes how the front driveline behaves during turns.
Before buying, consider tire diameter, the ratio already in the rear, and how the vehicle is mostly driven. Heavier tires and slow technical trails favor a numerically higher set, while frequent highway miles favor a lower one. Confirm the carrier and pinion setup on your current Dana 44 front, since the bearings and shims must match the housing.
- Note your current tire diameter and rear gear ratio
- Plan bearings, shims and seals with the gear set
- Budget for pattern checks by a shop with gauges
Specifications
| Brand | G2 Axle and Gear |
|---|---|
| Part number | G/21-2151-513R |
| Axle location | Front |
| Axle type | Dana 44 AdvanTEK |
| Gear ratio | 5.13 |
| Material | 8620 steel, forged |
| Surface | Lapped mating surface |
Vehicle fitment
Based on the product title and description, this front 5.13 set is for 2018–2022 Jeep Wrangler JL models.
Wranglers from 2007 through 2018 are outside these years. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
A ratio this numerically high needs careful pattern checks after install. A professional setup, with gauges for pinion depth and backlash, is the normal route for this front gear.
What’s included
One 5.13 ring and pinion gear set for the front Dana 44 axle.
Not included: carrier bearings, pinion bearings and the other install parts the gears need.
