SPX 1310 M44 Spicer Extreme Universal Wheel Joint Master Kit Spicer parts from Dana are trusted around the world for their high performance and outstanding durability, and now Spicer brings you their toughest u-joint yet: the Spicer Extreme u-joint. These u-joints can take any off-roading punishment you can dish out. They are virtually indestructible! Featuring a SAE-4340 nickel chromoly steel cross with an enlarged trunnion diameter for added strength, Spicer Extreme u-joints allow you to crawl over every boulder and come back for more.
*For off-road use only. There are no needle bearings in caps, they are meant for slow crawling and not high speed use.