Driveshaft and U-Joint Replacement in Spokane

The driveshaft transfers rotational power from the transmission or transfer case to the differential. Universal joints at each end of the driveshaft allow it to articulate as the suspension moves through its travel. When U-joints wear out, they develop play that causes vibration, clunking on acceleration and deceleration, and eventually catastrophic failure that can damage the transmission tail housing, floor pan, and brake lines. At Clutchland in North Spokane, we replace driveshafts and U-joints on rear-wheel-drive, four-wheel-drive, and all-wheel-drive vehicles.

U-joint failure is accelerated by Spokane's road conditions. Potholes, frost heaves, and rough pavement jar the driveline and stress the needle bearings inside the U-joint caps. Road salt and moisture work past the seals and corrode the needle bearings from within. Vehicles that tow trailers or carry heavy loads through the Spokane area place higher torque loads on U-joints, further shortening their service life.

Symptoms of U-joint failure include a clunking noise when shifting between drive and reverse, vibration at highway speeds that increases with speed, a squeaking noise from under the vehicle that changes with driveshaft rotation, and visible rust or play when the U-joint is inspected. We check U-joints by hand, looking for any perceptible play in the cross and cap assembly. Even small amounts of play cause vibration at driveshaft speeds.

Replacement involves removing the driveshaft, pressing out the old U-joint caps, installing new U-joints with fresh needle bearings and seals, and verifying that the driveshaft is not bent or out of balance. We use quality U-joints with greaseable fittings where possible so they can be maintained during routine service. After installation, a road test confirms smooth, vibration-free operation at all speeds on Spokane roads.