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Jeep Wrangler JK CRD60R Axle Install - Bolt-On Brawn For The JK

Posted in How To: Transmission Drivetrain on April 1, 2009
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Photographers: Vinson Pratt

Tera CRD60R Axle Features
* 3-inch-od DOM axletubing
* H.D. 3/8-inch cast differential
* 100% new components made in the USA
* Rolled axleshaft splines for a stronger shaft vs. cut splines
* 35-spline 4140 chromoly shafts with a 5-on-5 or 5-on-5.5 dual-wheel bolt pattern
* Heavy-duty outer pinion bearing

Two things we always look for in an axle are rugged dependability and additional ground clearance. The Tera CRD60R offers both and is engineered to be much stronger than the JK's factory 44. It also offers a high-pinion differential and much stronger bracketry with adjustable mounting points. Also, the new Tera axle is compatible with the factory sensor-control system, including the ABS, ESP, and speedometer.

The tough little Wrangler Rubicon first rolled off the assembly line in 2003. It has undergone many changes since then, but it's still one of the most capable off-road vehicles ever to roll down a production line. Even though it is fitted with front and rear Dana 44 solid axles and selectable locking differentials, it's not perfect, and to a hard-core four-wheel enthusiast there's always room for improvement. Tera Manufacturing has had its hands in the manufacturing of heavy-duty Jeep suspensions and components for more than a decade, and recently the company released the new bolt-on CRD60R rear axle for the JK. As automotive tech geeks, we love getting elbow-deep in a technically challenging truck and Jeep fabrication-but then again, we love easy bolt-on tech too.

The factory Dana 44 in the rear of the JK is a tough and dependable axle, but it isn't without its flaws. Some of the 44's bracketry is not fully welded on both sides of the seams. Under extreme conditions, we've seen upper track-bar mounts crack and break at the welded joints. Also, the stock axleshafts aren't exactly up to snuff when running tires 38 inches and up. The benefits the CRD60 axle offers are more strength, durability, and clearance than the factory 44. It's completely bolt-in and comes with chromoly axleshafts and a choice of gearing and traction options. The Tera CRD60R is a good choice if you're looking to swap out your rear axle-it offers strength and dependability any four-wheeler can appreciate.

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