Overview
The G2 CORE 44 rear axle assembly, part number G/2C4YSR410TC0, has a 4.10 gear ratio and a Detroit True Trac. G2 introduces its CORE 44 rear axle housing for 1987-1995 Jeep YJ Wranglers and 1984-2001 Jeep XJ Cherokees, so this rear is built for those models.
The housing is built to handle loads that would normally bend a stock Dana 30 or a Rubicon Dana 44, and it uses the high pinion Dana 44 gear design. It accepts stock Dana 44 ring and pinions, axle shafts and all aftermarket lockers, so existing Dana 44 hardware can be kept.
For 1987 to 1990 applications, select the part number with a D added at the end for the G2 disc brake option. For 1991 to 1995 applications, factory-style brakes need to be fitted, since this part number does not include the G2 disc brake option.
Key features
- CORE 44 rear housing, high pinion Dana 44 design
- Detroit True Trac traction device
- 4.10 gear ratio
- Accepts stock Dana 44 ring and pinions and axle shafts
- Accepts all aftermarket lockers
Setting up a CORE 44 build
A high pinion Dana 44 housing places the ring and pinion differently than a standard low pinion design, which affects how the driveshaft angle is set. Builders usually plan pinion height and driveshaft length together, using the new housing as the reference. Getting that layout right prevents vibration and early wear.
A locking differential changes how the axle behaves in turns, so the fluid, tire size and axle shafts should be chosen with it in mind. Keep a clear record of the brake plan, the gear ratio and the axle shaft type, since those choices affect parts that come later. Older housings often need fresh bearings and seals at the same time as the install.
- Plan pinion height and driveshaft length together
- Confirm the brake plan before ordering
- Replace bearings and seals during the build
Specifications
| Brand | G2 Axle and Gear |
|---|---|
| Part number | G/2C4YSR410TC0 |
| Axle type | CORE 44 rear, high pinion Dana 44 design |
| Position | Rear |
| Gear ratio | 4.10 |
| Traction device | Detroit True Trac |
| Brakes | Factory-style brakes needed for 1991–1995; G2 disc brake option with the D part number for 1987–1990 |
Vehicle fitment
It is built for the 1987–1995 Jeep Wrangler YJ and the 1984–2001 Jeep Cherokee XJ.
Confirm fit for your vehicle’s year, model and trim before ordering, especially for 1997–2006 Wrangler TJ and LJ or 2007–2018 Wrangler JK applications.
Installation notes
The rear is a high pinion Dana 44 housing, so ring and pinion setup and bearing preload need a shop with gear setup equipment. Plan the brake setup before ordering, since 1987–1990 and 1991–1995 applications differ.
What’s included
The CORE 44 rear axle assembly with the Detroit True Trac and 4.10 gears.
Not included: factory-style brakes for 1991 to 1995 applications, which need to be fitted.
