TK40497 Large Greaseable Rear Driveshaft U-Joint

TK40497 Torque King® Large Greaseable Rear Driveshaft U-Joint for Ford Super Duty F-450 and F-550 trucks is a cold-forged alloy steel greaseable u-joint with superior seals for long life under the most adverse conditions.

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Dan the Gear Man® Tech Notes:
U-Joint Types
U-Joint Specs
U-Joint Tools
Applications

Tech Note 1: U-Joint Types
Most U-Joint crosses are forged by one of two methods, either hot-forged or cold-forged. Cold-forged crosses are harder and more resistant to wear but the process is costly compared to hot-forging. For certain applications, such as rear driveshaft u-joints on diesel trucks, the increased wear resistance of a cold-forged cross is very important. For axle universal joints of this size, the hardness of the cross does not seem very critical for longevity. The big difference in service life comes down to lubrication and the effectiveness of the seals. The excellent seals and ability to easily grease the joint means this u-joint will probably outlast the rest of the truck even if you don't lube it on a regular basis. One of the very few parts that is as durable as the Cummins and Powerstroke diesels!

Tech Note 2: U-Joint Specs
This external snap ring universal joint is made to Spicer 1480 series dimensional specifications. It has 1-3/8" diameter cups and an overall width of 4-3/16".

Tech Note 3: U-Joint Tools
Most driveshaft universal joint service is done using makeshift tools and hammering on the parts until something gives. Driveshafts and universal joints are precise components that can be easily damaged by such slam-bang work. There is a better way to perform driveshaft service using application specific press tooling and approved service procedures. See our U-Joint Tools web page or our individual Tool Pages for QT1065M C-Frame Press, QT4009 Large U-Joint Separator Yoke, QT4011 Press Tip and QT4015 Press Anvil.

Applications
Ford:
Super Duty F-450 and F-550 Trucks