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Jeep Project CJ-7

An ongoing Budgeted Rebuild/Build up of a Rock Crawling Machine.

Jeep Central
From Jeep History to Tech Specs and Projects.  This section is all about Jeeps.
Jeep Technical Info
Engine Swaps

Installing 23,000 Volt Offroad Lights

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Jeep Dana 300 TeraLow - 4:1 Gearset for the Dana 300 Transfer Case




OX U-joints

The OX Heavy Duty U-joints

Ox U-Joint for Dana 30, Dana 44, GM 10 Bolt (equivalent to Dana 5-297X and 5-760X) and Ox U-Joints for DANA 60 1 Ton applications.

The Ox uses a multi-piece design, with a center body made of an 8620 alloy that has had some special and proprietary heat treatment. Instead of caps, the Ox has pins that insert through the axle yoke ear into the body and are retained inside a cavity in the body by a pair of 4340 alloy retainers. The pins are also 8620, but they get a different heat treatment than the body. The pins use an o-ring seal to keep water out.

The manufacturer has done destructive testing and found the unit can handle up to 22,000 lbs-ft. The new 760x cold forged Spicer is good for about 5,400 lbs-ft. The old 297s joint was good for about 4,600 lbs-ft. Ox claims their U-joint is nearly twice as strong as the next strongest super U-joint in the same sort of destructive tests. The Ox is so sturdy that it actually helps hold the axle yokes together longer under a heavy strain as well.

As to applications, Ox currently offers units that will replace the 297/760 Spicer sizes, which covers Dana 44s, GM 10-bolts, some Dana 30s and Dana 35 IFS, among a few others. A 332x size, to suit the Dana 60 front, is also available. Ox has plans to make a 260x series (many Dana 30s) and possibly even a 178x series (Dana 50 and others).

Ox recommends this U-joint to be used with the following axles: Genuine Gear, Yukon, Warn, and Superior.  Use only with heavy-duty axles with full clip capability. If your axles are not of the type Ox recommends, the U-joint
may not fit. They suggest you check for clearance before installing on your vehicle and Do not use this U-joint with stock axles.  Grease U-joints periodically according to usage. We recommend Amsoil Racing Grease.

Available for Dana 30/44 and GM 10 bolt, Part #: OX297X and lists for about $150. The Dana 60 application is Part #: OX332X and lists for about $230.

11625 Prosperous Drive
Odessa, FL 33556
Tel: 813-486-9506
Fax: 727-569-3200
Ox is part of the Florida Manufacturing Group
On the web at
Ox U-joint breakdown and Review
The front axle shafts and U-joints on a hard working 4x4 live a hard life, especially when big tires and low gears are added ... more ...

Ox Ujoints Install and Review

Ox Locker Install in a Dana 44
Ox Locker installation in a Cherokee XJ

Ox-Locker - Cable Operated Locker Review
4X4REVIEW.COM reviews the OX Locker

Ox Trax Locker in a 1992 Jeep YJ
The installation in the D30, (1988 4.10), of my 92 YJ went quite smooth. Here's what you get when you open the box....

4Wheel & Off-Road Review of the OX Locker
Thatís right, itís a whole new animalóno pun intended. Ox Trax has developed a cable-operated locker thatís simple, well designed, and looks bombproof. ...more

Ox Locker Testing IN A Ford F-150
Selective Locking, Battle Testing the Cable-Controlled OX Locker by 4Wheel & Off-Road

Ox Locker and 4.09:1 Gears Installation in a Dana 44

OX Trax Locker Press Release

OX U-joints Manufacturer Website
OX, part of Florida Manufacturing Group, manufacturer of the zero-maintenance OX Locker

OX U-Joint Installation

Ox U-joints on a 1966 Jeep Panel Wagon
JP Magazine beats the wagon to hell and it takes it.

Ox Locker in a Dana 44
A D44 with an Ox Locker Installation in a '89 Jeep Cherokee


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