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

Tools

  • 3/8th ratchet and extension
  • 15mm, 19mm sockets
  • 15mm wrench
  • Circlip pliers
  • Breaker bar
  • Torque wrench

Polaris RZR 900 front ball joint replacement

How to Change a Polaris RZR 900S Front Ball Joint

Step 1. Remove the front wheel.

Polaris UTV front ball joint replacement

Step 2. Remove the lower control arm ball joint bolt. 

Polaris side-by-side front ball joint replacement

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. 

Polaris RZR 900 UTV front ball joint replacement

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.

Polaris RZR 900 side-by-side front ball joint replacement

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.

Polaris RZR 900 front ball joint change

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.

Polaris RZR 900S ball joint change

Step 8. Reinstall the control arm onto the chassis and torque the mounting bolts to 42 foot-pounds.

Polaris RZR 900S UTV ball joint change

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.

Polaris RZR 900S side-by-side ball joints change

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.

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