U-Joints for 2013-2018 Ram 2500/3500 with Cummins 6.7L Engine

Jobsite Workhorse

Known for its durability and performance, the 2013-2018 Ram 2500/3500 truck equipped with a 6.7L Cummins diesel engine is a workhorse. With its generous cargo capacity and higher torque and towing capacity, the Ram 2500/3500 can be found on jobsites, farms and construction sites across the nation. When driveline parts like universal joints need to be replaced, MOOG® has you covered.

Getting the Right Part

When installing a U-joint on a 2013-2018 Ram 2500/3500 truck you need to know the length of the truck’s bed to ensure that you select the right part. Ram trucks with a 6' (76.3") bed were manufactured with a one-piece aluminum driveshaft while vehicles with an 8' (98.3") bed came with a two-piece steel driveshaft. Because of the different material of the driveshafts, each require a different universal joint. Once you’ve identified the bed size and the corresponding driveshaft material, you’ll be able to get the right U-joint for your vehicle.

MOOG U-Joints for Ram 2500/3500

Whether your Ram 2500/3500 has a 6' bed with an aluminum driveshaft or an 8' bed with a steel driveshaft, MOOG has a U-joint for your vehicle. MOOG part 358CT fits the aluminum driveshaft while 358B is for the steel driveshaft. While both parts have the same dimensions, the difference is in the coating on the cups. 

The cups on the 358CT have an anti-galvanic zinc plating (coating) that prevents corrosion between the mating surfaces. The snap rings on the 358CT have the same corrosion-preventing coating. MOOG is unique in using this anti-galvanic coating; the OEM part doesn’t have a coating nor do most competitor parts. 

Part number 358B for the steel driveshaft doesn’t have the anti-galvanic coating on the cups or snap rings. The steel driveshaft doesn’t have the corrosion risk that the aluminum driveshaft has. 

Avoiding Galvanic Corrosion

While the 358CT U-joint can be used on either the aluminum driveshaft or the steel driveshaft, the 358B shouldn’t be used on the aluminum driveshaft due to the risk of galvanic corrosion. An electrochemical reaction, galvanic corrosion can occur when two dissimilar metals come in direct contact with each other. If the 358B universal joint without zinc plating is used on the aluminum driveshaft, galvanic corrosion can take place leading to premature failure of the U-joint and the driveshaft. The 358B U-joint should only be used on the steel driveshaft that comes on the 8' bed.

MOOG Universal Joints

Featuring comprehensive testing throughout the design and development processes, MOOG U-joints deliver reliable performance you can count on. Both 358B for steel driveshafts and 358CT for aluminum driveshafts feature bearing cups that are cold-forged, case-hardened and precision ground while the steel cross is forged and carburized heat-treated for strength and durability. Each have a greaseable design that flushes out contaminants with the 358CT having bearing cups that allow 360° lubricant distribution to all bearing surfaces.

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The content in this article is for informational purposes only. You should consult with a certified technician or mechanic if you have questions relating to any of the topics covered herein. Tenneco will not be liable for any loss or damage caused by your reliance on any content.