Jeep Wrangler Gears, Lockers, and Rebuild Kits Ring and pinion gears, lockers, and overhaul kits for Jeep YJ, TJ, LJ, JK, JKU, and Rubicon series Wranglers.
Jeep Wranglers are some of the most capable off-road vehicles ever produced and will handle most trails with very few modifications. While some models have small Dana 30 axles good for up to 33" tires, some models came with Dana 44 axles front and rear that can be built to handle 40" tires with ease.
Jeep Wrangler YJ (1987 - 1995)
The following gears, lockers and install kits are available for the 1987 to 1995 Jeep Wrangler YJ with Dana 30 solid front axles and Dana 35 / Model 35 solid rear axles. These axles are good for mild to moderate off-roading with up to 35" tires when properly upgraded, however, anything more than that would justify a Dana 44 or one-ton axle swap. All differentials and gears used 3/8" ring gear bolts so all aftermarket gears and differentials are compatible with OEM equipment.
Front Axle: Dana 30 27 Spline / Full Floating
3/8" R.G. Bolts / Non-Crush Sleeve
Reverse Rotation
• 1987-89 Dana 35 axles use bolt-in axle shafts.
• 1990-95 Dana 35 axles use c-clip axle shafts.
• All of the above lockers will fit both axle types.
• A Dana 44 axle was a very rare option from 1988-96.
Jeep Wrangler TJ / LJ / Unlimited (1997 - 2006)
The following gears, lockers and install kits are available for the 1997 to 2006 Jeep Wrangler TJ (Non-Rubicon) with a Dana 30 solid front axle and either a Dana 35 or Dana 44 rear axle. The Dana 30 and Dana 35 axles are adequate for mild to moderate off-roading with up to 35" tires when properly equipped while the optional Dana 44 rear axle can be built to handle up to 40" tires under more aggressive use.
When changing gears or differentials in these axles you will need to pay attention to the ring gear bolt sizes as they changed from 3/8" to 7/16" between 2002 and 2003. Ring gear bolt sleeves may be needed for some differentials while others may need to have their bolt holes enlarged slightly.
Front Axle: Dana 30 TJ 27 Spline / Crush Sleeve
3/8" R.G. Bolts / Short Pinion
Standard Rotation
• 30 spline axle upgrade available - Contact Us.
• Some 2002-06 axles used 7/16" ring gear bolts (very rare).
• OEM ratios included 3.07, 3.55, 3.73, 4.11, and 4.56.
• All TJ Dana 30 axles have a 5 x 4.5" bolt pattern.
Standard Rear Axle: Dana 35 / Model 35 27 Spline / C-Clip Axles
3/8" & 7/16" R.G. Bolts
Standard Rotation
† May require drilling to fit 03-06 OEM gears.
• 1997-02 Dana 35 TJ axles used 3/8" ring gear bolts.
• 2003-06 Dana 35 TJ axles used 7/16" ring gear bolts.
• OEM ratios included 3.07, 3.55, 3.73, 4.11, and 4.56.
• All TJ Dana 35 axles have a 5 x 4.5" bolt pattern.
Optional Rear Axle: Dana 44 30 Spline / Full-Float
3/8" & 7/16" R.G. Bolts
Standard Rotation
† May requires drilling or sleeves for 03-06 gears.
‡ Sleeves required for aftermarket and 97-02 gears.
± Gears tapped for both 3/8" and 7/16" ring gear bolts.
• Aftermarket gears are tapped for 3/8" ring gear bolts.
• 1997-02 Dana 44 TJ axles used 3/8" ring gear bolts.
• 2003-06 Dana 44 TJ axles used 7/16" ring gear bolts.
• 1997 OEM 3.55 ratio / 1998-2006 OEM 3.73 ratio.
• All TJ Dana 44 axles have a 5 x 4.5" bolt pattern.
Jeep Wrangler TJ Rubicon (2003 - 2006)
The following gears, lockers and install kits are available for the 2003 to 2006 Jeep Wrangler TJ Rubicon with Dana 44 solid front and rear axles. The front axle is equipped with a factory e-locker that switches between an open differential and a locked differential while the rear axle features a locker that switches from a limited slip differential to a locked differential. These axles are very strong and can handle moderate to aggressive off-roading with up to 40" tires.
When changing gears or differentials in these axles you will need to pay attention to the ring gear bolt sizes as the factory equipment uses 7/16" bolts while most aftermarket gears and differentials use 3/8" ring gear bolts. The OEM lockers are also lower carriers that require the use of "thick" gears.
A popular upgrade is to source another front OEM locker and use it to replace the less desirable OEM rear locker..
Front Axle: Dana 44 TJ Rubicon 30 Spline / Full-Float
7/16" Ring Gear Bolts
Standard Rotation
(T) Thick gears for 3.73- lockers are tapped 3/8" & 7/16"
† Requires Install Kit with 3/8" ring gear bolts.
‡ May require drilling to fit 7/16" ring gear bolts.
§ May require ring gear bolt sleeves.
• All TJ Rubicon axles had a 4.10 OEM ratio.
• All TJ Rubicon axles had a 5 x 4.5" bolt pattern.
Rear Axle: Dana 44 TJ Rubicon 30 Spline / Full-Float
7/16" Ring Gear Bolts
Standard Rotation
(T) Thick gears for 3.73- lockers are tapped 3/8" & 7/16"
† Requires Install Kit with 3/8" ring gear bolts.
‡ May require drilling to fit 7/16" ring gear bolts.
§ May require ring gear bolt sleeves.
• All TJ Rubicon axles had a 4.10 OEM ratio.
• All TJ Rubicon axles had a 5 x 4.5" bolt pattern.
• TJ Rubicon axles require a different seal and carrier shims but with the TJ Rubicon Master Install Kit, standard Dana 44 gears, lockers, and axle shafts will fit.
Jeep Wrangler JK / JK Unlimted (2007 - 2017)
The following gears, lockers and install kits are available for the 2007 to 2017 Jeep Wrangler JK (Non-Rubicon) with a Dana 30 solid front axle and Dana 44 rear axle. The Dana 30 front axle is the weak link in this combination and good for mild to moderate off-roading with up to 35" tires when properly built, whereas the rear axle can manage up to 40" tires under more aggressive use.
When changing gears or differentials in these axles you will need to pay attention to the ring gear bolt sizes. The front axles use 7/16" ring gear bolts while most aftermarket differentials and gears are designed for 3/8" bolts. The rear axle features 1/2" ring gear bolts that require specific ring and pinion gears or enlarging the ring gear bolt holes in an aftermarket differential to fit the OEM gears. When changing both the gears and the differential, standard Dana 44 components with 3/8" ring gear bolts will fit.
Front Axle: Dana 30 JK 27 Spline / Crush Sleeve
7/16" R.G. Bolts / Short Pinion
Standard Rotation
± Gears are tapped for both 3/8" and 7/16" bolts.
§ Kit includes 3/8" and 7/16" bolts and 3/8" sleeves.
† May require ring gear bolt sleeves for 3/8" bolts.
‡ May require drilling to fit 7/16" ring gear bolts.
• 30 spline axle upgrade available - Contact Us.
• 3.21 OEM gear ratio (3.73, 4.10 optional ratios).
• Jeep JK axles have a 5 x 5" bolt pattern
Rear Axle: Dana 44 JK 30 Spline / Full-Float
1/2" Ring Gear Bolts
Standard Rotation
• This axle requires Dana 44 JK specific gears.(±)
± Gears are tapped for 1/2" ring gear bolts.
± Dana 44 JK gears fit 3.73- carriers only.
‡ Requires drilling to fit 1/2" ring gear bolts.
• Dana 44 JK axles feature an oversize pinion gear.
• Standard Dana 44 gears will not fit this axle.
• 3.21 OEM gear ratio (3.73, 4.10 optional ratios).
• Jeep JK axles have a 5 x 5" bolt pattern
Jeep Wrangler JK / JK Unlimted Rubicon (2007 - 2017)
The following gears, lockers and install kits are available for the 2007 to 2017 Jeep Wrangler JK Rubicon with Dana 44 solid front and rear axles. These axles feature oversized pinion gears and heavy duty electric lockers that are good for moderate to aggressive off-roading with up to 40" tires when properly equipped. Other than changing gear ratios to accommodate the larger tires, the only other worthwhile upgrade would be RCV axle shafts to handle competition compound tires for race use.
Jeep JK Rubicon axles require JK Rubicon specific gears and the OEM lockers require non-standard axle shaft lengths. If moving away from the factory lockers, new axle shafts are required - Contact Us for details.
Front Axle: Dana 44 JK Rubicon 30 Spline / 1/2" R.G. Bolts
Large O.D. Short Pinion
Reverse Rotation
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