Polaris RZR 900S Front Ball Joint Replacement
When the steering on your Polaris UTV is not as precise as it should be, the problem could be that the ball joints are worn and need replacing.
Replacing ball joints on a Polaris RZR 900S shouldn’t take too long to get done. Watch the video above and follow the steps below to change the front ball joints on a Polaris RZR 900S. Use our Polaris RZR front suspension parts diagram for additional reference.
Tools and Parts Needed – Polaris RZR Front Ball Joint Change
- 3/8th ratchet and extension
- 15mm, 19mm sockets
- 15mm wrench
- Circlip pliers
- Breaker bar
- Torque wrench
How to Change a Polaris RZR 900S Front Ball Joint
Step 1. Remove the front wheel.
Step 2. Remove the lower control arm ball joint bolt.
NOTE: The ball joint should drop out of the knuckle, but you can use a hammer to break it free if necessary.
Step 3. Remove the lower control arm mounting bolts that secure the arm to the chassis frame, followed by the control arm itself.
NOTE: You may have to remove the front bumper to access the front control arm mounting bolt, depending on your model.
Step 4. Remove the retaining circlip from the ball joint and discard it.
Step 5. Place the control arm over a socket (or something similar) with a wider diameter than the ball joint, then press the old ball joint down and out from the control arm.
Step 6. Clean the ball joint housing in the control arm and then press a new ball joint into place.
Step 7. Install a new circlip, making sure it sits within its groove at the base of the ball joint.
Step 8. Reinstall the control arm onto the chassis and torque the mounting bolts to 42 foot-pounds.
Step 9. Reinstall the ball joint into the knuckle, making sure the channel in the ball joint lines up with the bolt hole in the knuckle so the bolt will fit through the knuckle. Apply red threadlocker to the ball joint bolt and torque it to 42 foot-pounds.
Step 10. Reinstall the wheel and you’re done.
NOTE: Torque the wheel nuts to 120 foot-pounds for aluminum wheels, and to 60 foot-pounds for steel wheels.