Overview
The G2 Axle and Gear CORE 44 rear axle assembly is a complete rear axle with a 5.13 ratio, an ARB Air Locker and a disc brake kit. The CORE 44 housing is built to carry heavy loads that would bend a stock Dana 30 or Rubicon Dana 44 housing. It fits 1987-1995 Jeep YJ Wranglers and 1984-2001 Jeep XJ Cherokees.
The housing accepts Dana 44 ring and pinion gears, Dana 44 axle shafts and aftermarket lockers, so those internals can be used with it. Check the package contents against your installation before starting.
Key features
- CORE 44 housing designed for heavy loads that would bend a stock Dana 30 or Rubicon Dana 44
- Accepts stock Dana 44 ring and pinions and axle shafts
- Accepts all aftermarket lockers, per G2 Axle and Gear
- Features a 5.13 ratio, ARB Air Locker and disc brake kit
- Fits 1987-1995 Jeep YJ Wranglers and 1984-2001 Jeep XJ Cherokees
Before you buy
A full axle swap is a bigger job than a part swap, so plan the time and tools before you start. Because the housing takes Dana 44 internals, the ring and pinion, carrier and locker are often replaced together when the gears are changed. Bearings, seals and the pinion crush sleeve are usually new on a rebuild, and worn axle shafts are worth checking at the same time. Think about which gear ratio suits your tires and drivetrain, since a lower or higher ratio changes how the vehicle pulls.
Pay attention to brake and locker combinations. A disc brake kit and an air locker both add parts that need hoses, fittings or a compressor setup, so confirm you have the hardware for each. Check the axle for leaks and play after the first drives, and retorque the carrier bolts after a few trail runs.
Specifications
| Brand | G2 Axle and Gear |
|---|---|
| Part number | G/2C4YSR513AC0D |
| Housing | CORE 44 rear axle housing |
| Gear ratio | 5.13 |
| Locker | ARB Air Locker (named in title) |
| Brakes | Disc brake kit (named in title) |
| Compatible internals | Dana 44 ring and pinions, Dana 44 axle shafts, aftermarket lockers |
Vehicle fitment
It fits 1987-1995 Jeep YJ Wranglers and 1984-2001 Jeep XJ Cherokees. The fitment for this housing is set by those model years and generations.
Fit for the 1997-2006 Jeep Wrangler TJ, 2004-2006 Jeep Wrangler LJ, 2007-2018 Jeep Wrangler JK and Grand Cherokee ZJ and WJ should be confirmed against your vehicle’s year, model and trim before ordering.
Installation notes
Because the housing is built around Dana 44 internals, ring and pinion setup, bearing preload and locker installation are jobs for an experienced axle builder. Any new ring and pinion set needs a proper break-in period. Support the vehicle on jack stands and never work under it on a jack alone.
What’s included
Includes a 5.13 ratio, ARB Air Locker and disc brake kit. Check the included components against your installation before starting.
