A driveshaft is the tube or tubes that move power between the transmission and
Differential in the rear axle. All driveshafts need universal joints at each end, and a center bearing needs one behind it on two-part driveshafts at the back. The U-joint serves as a double-hinged tool that moves power from one shaft directly to another shaft at an angle. The regular U-joint connects two shafts by fixing Y-shaped yokes at 90-degree angles, with the force passed through the sq. center bearing we call "spider." All rear driveshafts have a slip yoke at the front that lets the driveshaft move up and down inside the transmission, stopping oil leaks and keeping dirt out with a special oil seal. When a car has two separate short driveshaft pieces, a middle mounting point is located on a rubber cushion built into the vehicle frame to support the transmission and prevent dirt from entering. At the back, all rear driveshafts connect the rear axle differential pinion flange through a flange yoke held in place by four bolts that prevents leaks by using a seal. The driveshaft mainly needs little attention, with the universal joints self-lubricating for their entire lifespan before possible issues require removing the drive shaft from the car for repair. We should clean the driveshaft well and make sure small weights meant for balancing are there, checking the shaft for damage when we do. When you drive and notice a strange noise or feel vibrations, a test drive can tell you if they come from your driveshaft or another part. Checking the driveline for problems is best done if you think something is wrong.