DriveshaftRepair

Driveshaft repair at PRO SERVICE (Batumi, Airport Highway 212): we trace vibration or clunks and replace what is worn — U-joints, center support bearing, flex disc. U-joint replacement from … GEL, center bearing from … GEL, time 3-5 hours.

How to tell the driveshaft is the problem

• Vibration that grows with speed, felt through the floor and seats rather than the steering wheel. A shaking wheel more often points to the wheels.
• A metallic click or clunk when pulling away or switching sharply from throttle to brake — play in a U-joint or the splines.
• Hum or rumble under the middle of the car — center support bearing.
• Vibration on acceleration that disappears off the throttle — worn center support or driveshaft joints (some models use CV joints instead of U-joints).
• Squeak at low speed — a dry U-joint.

Rear-wheel and all-wheel-drive cars have a driveshaft. On front-wheel-drive cars similar symptoms usually come from the CV joints — that is a different job.

What we check

1. On the lift: play in U-joints and splines, the center bearing and its rubber, cracks in the flex disc (guibo).
2. Alignment marks and balance weights. If the shaft was removed before and refitted out of phase, vibration is almost guaranteed.
3. Engine and gearbox mounts: a sagging mount changes driveshaft angles and causes similar vibration.
4. Gearbox, transfer case and differential seals where the shaft enters.

Repair or replace the shaft

On most cars U-joints, the center bearing and the flex disc are replaced individually, without a new shaft. If the shaft is bent — for example after hitting a rock on a dirt road — or vibration remains after new parts, it needs straightening and balancing or a complete replacement. We decide after inspection.

Before removal we always mark the shaft so it goes back in the same position, and torque the fasteners to spec.

Prices