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4x4 Truck Axle Parts Buyers Guide - The Great Axle Connection

4x4 Posi Lock
Kevin McNulty | Writer
Posted June 1, 2009

A Builders Guide To The Hottest Parts

If you're looking to make upgrades and repairs to your old tired axles or to rebuild junkyard iron, or you need complete replacement assemblies, then you just got lucky! We've gathered a few new products from the top axle and axle-parts manufacturing companies and put together this giant guide. If you don't find what you need, then check out the websites or give them a call.

1. 4x4 Posi-Lok
4x4 Posi-Lok replaces the failure-prone O.E. vacuum and electric front axle engagement systems and allows axle engagement from the inside the cab. Eliminate that old worn-out vacuum shirt motor on Dodge and Jeep vehicles.

4x4 Posi-Lok System

2. Alloy USA
The Alloy USA '03-'06 Jeep Wrangler Rubicon chromoly Dana 44 front axle kit includes 4340 Chromoly shafts that are up to 40 percent stronger than stock 1040 axles. The cold spline-rolling technology in the shafts creates splines that are stronger than cut ones. The kits include everything you need to complete the job: both passenger- and drive-side inner and outer axleshafts, seals, U-joints, and clips.

Alloy Usa

3. ARB
ARB has released the latest Nissan Air Locker. Designed for the M226 Nissan axles found in '05 and later Nissan Frontiers, Titans and Xterras. The locker features a timed locking mechanism that optimizes the Air Locker's internal gear mesh in the locked configuration and increases the unlocking speed at the touch a switch.

Arb Usa

4. ATS Diesel
ATS Protector differential covers are cast and machined in the USA and available for Dodge, Ford, and GM trucks. Fluid capacity is increased at least 2.5 quarts, and heat reduction is provided via the integrated heat sink. Powdercoating locks out moisture. The Protector Line features large magnetic drain plugs and easy-fill points for simple servicing.

ATS Diesel

5. Auburn Gear
The ECTED electronically controlled traction enhancing differential, provides the user with a selectable limited slip or locker mode. The ECTED functions as a performance limited slip differential and a solid locker when actuated. Available for the AMC 20; the Dana models 30, 35, and 44; the Dana 50 for front axles; the Ford 8.8; and the GM 8.5, 10-bolt, 87/8, and 12-bolt.

Auburn Gear

6. AxleTech
This Portal bolt-on conversion for Dana 60 axles offers four-gear design, with no reverse rotation gearing or flipped differentials required. The 1.5:1 reduction ratio is for increased wheel torque without increased stress on the ring-and-pinion. The ends also include a heavy-duty vented rotor with Wilwood four-piston calipers.

AxleTech International

7. BDS Suspension
A full line of heavy-duty differential guards is now available and designed with clearance, approach angle, and protection in mind. These guards are made with a 7/8-inch solid front barand have 5/8-inch solid steel supports.

BDS Suspension

8. Blue Torch
The Dana 50/60/70 diff cover is designed like all of the Kryptonite diff covers, is fabricated with 1/4-inch steel plate for the cover, and has a 3/8-inch steel ring for the base. With a 3/8-inch-thick steel ring, the cover is built to resist "peel up" as you drag your diff over rocks and other terrain. The fill plugs have a CNC-machined boss that extends out to protect the plug.

Blue Torch FabWorks

9. Boyce Equipment & Parts
Boyce Equipment's 14-bolt rear axle bolt-on disc brake kits can be ordered with standard brakes or an E-brake design. The systems fit 15-inch wheels and up and use standard OEM replacement parts. Kit comes with all parts and hardware for easy installation.

Boyce Equipment & Parts

10. BTB Products
Lift kits may change the original driveline lengths and pinion angles at the differential. To correct the pinion angle problem, BTB Products offers the 6-Degree Axle Shim Kit. The shims are made from a high-grade steel and measure 5 by 21/2 inches with a 5/8-inch center hole and are sold in pairs.

BTB Products

11. Currie Enterprises
New from Currie is the bolt-in TJ RockJock frontend package. The system includes all components to do a complete job. Package features the housing with all heavy-duty bracketry installed, a track bar, a track-bar brace and bracket, a tie-rod and drag link, inner axles, and all necessary installation hardware.

Currie Enterprises
714. 367.2226

12. Crane Hi Clearance
The Crane differential covers are made from 8620 chrome-moly steel and have a built-in, recessed bolt design. The covers also use 12-point counter-bore bolts that allow for correct torque.

Crane Hi Clearance

13. CTM
CTM U-joints offer a fully rebuildable, unique design. As long as the cross or caps are intact then the seals, bushings and clips can be replaced indefinitely. These U-joints are designed for use with full-circle clips, which means they need to be installed on chromoly axleshafts. CTM U-joints use a bronze sleeve that shows little to no wear.


14. Drive Train Specialists
DTS Custom Service manufacturers complete bolt-in assemblies, or the company can build them to your specifications. DTS builds new 12-bolts, Dana 44s, 60s, Ford 9-inch, and 8.8 axles. DTS also custom-rebuilds and modifies other axles from cores.

Drive Train Specialists

15. Dynatrac
The new Trail-Series 44 front and rear axles are for Jeep YJ, TJ, and JK. These New Generation (product name: KM) bolt-in Dana 44 axles are loaded with big shafts, 1350 front axle joints, high-strength gears, bigger brakes, a selectable electric locker, and heavy-duty high-pinion housings.


16. Eaton/Detroit Locker
These new Eaton ELockers are engineered for Dana 30 and Dana 35 Jeep axles in both stock 27-spline and high-performance 30-spline. The Eaton ELocker goes from fully open to full lockup at the touch of a button. Installation of these ELockers will keep a Jeep well mannered on the highway and provide spoollike traction off-road.

Eaton Corp.

17. Extreme Off-Road
These Dana 60 35-spline drive flanges are made from 8620 steel and heat-treated for strength. The drive flanges feature a greased fitting and are sold in pairs. When the hub is full of grease, there's no room for mud or water.

Extreme Off-Road Products

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