American-made CORE 44 housings accept the latest generation Dana 44 gear design, with a larger diameter ring gear and bigger pinion shaft to withstand hard off-road use. Our housings feature forged bearing caps and a unique G-lock adjuster nut system to set backlash and carrier bearing preload. CORE 44 axles use additional ribbing on the cast center section and 3-inch diameter, 5/16-wall DOM axle tubes with forged inner Cs for use with tall, aggressive tires.
The CORE 44 is a direct replacement for the Dana 30 under the front of your leaf sprung 87-95 YJ Wrangler or coil sprung 97-06 TJ Wrangler. All brackets are designed around stock mounting points, and are laser cut and CNC formed from 3/8- inch steel for added strength. We have also gusseted and reinforced any weak points to prevent damage to the brackets and finish the housing in a UV-stable black powdercoat.
The CORE 44 comes fully assembled with your choice of gear ratio and locker. Gear ratios vary from 3.73 to 5.38 and locker choices include ARB Air Locker, Eaton E-Locker, Detroit Locker, Truetrac, G2 selectable locker, and Auburn ECTED.
| RATIO | AUBURN ECTED | ARB AIR LOCKER | DETROIT LOCKER | EATON E-LOCKER | TRUETRAC |
|---|---|---|---|---|---|
| 3.73 | C4Y SR 373 MC0 | C4Y SR 373 AC0 | C4Y SR 373 LC0 | C4Y SR 373 EC0 | C4Y SR 373 TC0 |
| 4.1 | C4Y SR 410 MC0 | C4Y SR 410 AC0 | C4Y SR 410 LC0 | C4Y SR 410 EC0 | C4Y SR 410 TC0 |
| 4.56 | C4Y SR 456 MC0 | C4Y SR 456 AC0 | C4Y SR 456 LC0 | C4Y SR 456 EC0 | C4Y SR 456 TC0 |
| 4.88 | C4Y SR 456 MC0 | C4Y SR 488 AC0 | C4Y SR 488 LC0 | C4Y SR 488 EC0 | C4Y SR 488 TC0 |
| 5.13 | C4Y SR 513 MC0 | C4Y SR 513 AC0 | C4Y SR 513 LC0 | C4Y SR 513 EC0 | C4Y SR 513 TC0 |
| 5.38 | C4Y SR 538 MC0 | C4Y SR 538 AC0 | C4Y SR 538 LC0 | C4Y SR 538 EC0 | C4Y SR 538 TC0 |
| RATIO | CORE LOCKER | ARB AIR LOCKER |
|---|---|---|
| 4.10 | C4Y SR 410 CC5 | C4Y SR 410 AC5 |
| 4.56 | C4Y SR 456 CC5 | C4Y SR 456 AC5 |
| 4.88 | C4Y SR 488 CC5 | C4Y SR 488 AC5 |
| 5.13 | C4Y SR 513 CC5 | C4Y SR 513 AC5 |
| 5.38 | C4Y SR 538 CC5 | C4Y SR 538 AC5 |
DO NOT USE SYNTHETIC OIL FOR GEAR BREAK IN. IT IS OK AFTER THE FIRST 500 MILES OF BREAK IN.
*Rear assemblies are built for “DRUM” brake applications, if vehicle has disc brake please specify upon ordering
Add a “D” for Disc Brake option, Emergency brake cables sold seperately.
YJ/XJ rear assemblies do not include track bar brackets.
YJ/XJ models 87-90 will require 91-later brakes or add a “D” for disc brake option.
Driveshaft modification may be necessary.
YJ housings will require welding of brackets.
Do not come powder coated.
