How Does a Universal Joint Work?
In General The job of a universal joint is to connect the driveshaft to the axle or output shaft in the transmission or transfer case. It allows the shaft to flex while it is spinning so that it won’t bind. If quality universal joints are purchased and properly maintained, they will provide years of trouble free service. For four-wheel drive vehicles that see lots of dirt, water or mud, universal joints that are greasable are recommended to prevent premature failure and maintain good working order. Universal joints come in varying materials and levels of quality, and one should never get the cheapest model on the market just to save a few bucks. In the long run, this important component of the drive train will save you money and hassle if quality units are installed. The Caps A universal joint looks much like a plus sign with shiny round tips on all four ends. These round caps fit inside the axle shaft ends and onto the pinion yoke on the back of the axle housing. The caps are normally
