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MOTONEIGE POLARIS
CENTRE D'AIDE
8/25/2023

2023+ Patriot Boost INDY VR1 Lower A-Arm Removal and Installation

Required Tools and Supplies

  • 13mm Socket
  • 15mm Socket
  • 17mm Socket
  • 13mm Wrench
  • 15mm Wrench
  • Ratchet
  • Torque Wrench
  • Lower Control Arm Pivot Nut
  • Lower Control Arm Nuts
  • Lower Shock Mount Nut
  • Sway Bar Link Nut
  • Lower Spindle Nut
  • Safety Glasses
  • Nitrile Gloves
  • Shop Rags

To learn more about tools, read the Tools and Fasteners Guide

Always wear safety glasses and nitrile gloves when servicing your Polaris snowmobile. To remove and install the lower A-arm (control arm) on your Patriot Boost INDY VR1, follow these steps:

1. Ensure the snowmobile is on a flat, level surface.

2. Safely elevate the snowmobile. Reference your Owner’s Manual for proper lifting techniques.

3. Remove the sway bar link fastener with a 13mm socket and 13mm wrench. Discard the nut.

4. Remove the lower shock fastener with a 15mm socket and 15mm wrench. Discard the nut.

5. Counter-hold the lower control arm spherical bearing and remove the fastener, nut and washers with a 17mm socket and 15mm wrench. Discard the nut.

6. Carefully separate the spherical bearing from the spindle.

7. Remove the frontmost pivot fastener and nut with a 15mm socket and 15mm wrench. Discard the nut.

8. Remove and discard the flange nuts securing the pivot shafts to the sled and pivot the lower control arm assembly off of the sled.

9. Before continuing, clean the control arm with a clean shop rag.

10. Inspect the control arm for wear or damage and replace if necessary.

11. Inspect the pivot shafts for wear or damage and replace if necessary.

12. Inspect the spherical bearing for wear or damage and replace if necessary.

13. Align the control arm assembly with the mounts on the sled and reinstall the assembly.

14. Install three new flange nuts onto the pivot studs.

15. Loosely reinstall the pivot screw into the frontmost mounting hole on the right side of the sled and secure with a new nut.

16. Align the spherical bearing with the spindle.

17. Reinstall the retained fastener and washer with dome side down from the underside of the bearing.

18. Secure the bearing with a retained washer, dome side down, and a new flange nut.

19. Inspect the shock bushing and the sway bar link bushing for wear or damage and replace if necessary.

20. Align the shock mounting holes and reinstall the retained fastener from the rear and secure with a new nut.

21. Align the sway bar link with the mounting hole in the control arm. 

22. Reinstall the retained fastener from the left side of the sled and secure with a new nut.

23. Torque the lower control arm flange nuts to 30 ft-lbs (41 Nm).

24. Torque the arm pivot screw to 40 ft-lbs (54 Nm).

25. Torque the spherical bearing nut to 48 ft-lbs (65 Nm).

26. Torque the shock fastener to 37 ft-lbs (50 Nm).

27. Torque the sway bar link fastener to 20 ft-lbs (27 Nm).

28. Finally, lower the vehicle completely.

For more information, see your authorized Polaris Dealer. To find a dealer near you, use the Dealer Locator.
Maintenance tips, procedures and specifications can be found in your Owner's Manual.
To find diagrams and replacement part numbers, use the online parts catalog.

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© 2023 Polaris Industries Inc

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