Greasable Automotive Universal Joints from Spicer. Our standard of performance, these light duty OEM quality universal joints feature journal crosses that are manufactured from high-quality alloy forgings and heat treated for maximum life. The bearing cups are case hardened for strength and durability. The seals are made from nitrile rubber for optimum grease retention and contaminant exclusion. All of this is why we can say that genuine Spicer parts meet the rigorous Dana standards that have made us the global leader in automotive u-joint technology.