We headed to Bayshore Truck, our local Spicer dealer, to compare sizes and types of U-joints for driveline applications. The most common U-joint used in Jeeps and 1⁄2-ton trucks is known as the ...

Those are the most insidious bolts, the ones buried deep within engine bays and dashboards, the ones that are hardest to reach. Unless, that is, you have a universal socket joint on hand.