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U-Joint (Universal Joint)


Replacement aftermarket universal joints usually have a zerk fitting for providing lubrication after installation and periodic lubrication. Universal joint grease or multipurpose gease is added to a U-joint with a lube gun adapter that has a special pressure control attachment to avoid damage to the seal. Squeeze the handle using short, quick grips to supply grease in small spurts until evidence of the grease appears at the seals.

Replacement joints usually have a zerk fitting for lubrication during service.