Snowmobile Polaris 600 RUSH (2010 year). Manual - part 68

8.38

Steering and Suspensions

9923311 - 2010-2012 PRO-RIDE RUSH/Switchback/RMK Service Manual

© 2011 Polaris Sales Inc.

Progressive 121 Front Torque Arm

Assembly Notes

• Never re-use lock nuts. Always replace with new 

parts.

• All pivots must rotate freely after tightening 

fasteners.

FRONT TORQUE ARM

LIMITER STRAPS

PIVOT SHAFT

UPPER TORQUE ARM SHAFTS

BUSHING

BUSHING

A

A

B

B

LIMITER STRAP SPACER

BUSHING

FRONT TRACK SHOCK

METRIC FASTENERS

INSTALL STRAPS RUBBER SIDE OUT

C

= T 

A: 17 ft-lb (23 Nm)



B: 60 ft-lb (80 Nm) Apply Loctite® 262™ to Threads



C: 33 ft-lb (45 Nm)

CAUTION

Some rail shaft fasteners are pre-coated with locking 

agent. Never re-use these fasteners once removed. 

Always use new pre-coated fasteners.

8.39

Steering and Suspensions

8

9923311 - 2010-2012 PRO-RIDE RUSH/Switchback/RMK Service Manual

© 2011 Polaris Sales Inc.

Progressive 121 Idler Shafts

Assembly Notes

• Never re-use lock nuts. Always replace with new 

parts.

• All pivots must rotate freely after tightening 

fasteners.

• Install rear idler adjust blocks with flat side facing 

adjuster screw.

INNER SHAFT

SPACER

ADJUSTER SPACER

SHAFT

SHAFT

ANODIZED SHAFT

REAR IDLER WHEELS

A

A

B

A

A

A

A

WASHER

WASHERS

INNER SHAFT

SPACERS

ADJUSTER SPACER

INSTALL TORQUE ARM
BOLT IN THIS DIRECTION

C

METRIC FASTENERS

B

A

A

= T 

A: 33 ft-lb (45 Nm) Apply Loctite® 262™ to threads



B: 50 ft-lb (67 Nm) Apply Loctite® 262™ to threads



C: 60 ft-lb (81 Nm)

CAUTION

Some rail shaft fasteners are pre-coated with locking 

agent. Never re-use these fasteners once removed. 

Always use new pre-coated fasteners.

8.40

Steering and Suspensions

9923311 - 2010-2012 PRO-RIDE RUSH/Switchback/RMK Service Manual

© 2011 Polaris Sales Inc.

Progressive 121 Rear Crank/Rear Scissor Assembly

Assembly Notes

• Never re-use lock nuts. Always replace with new 

parts.

• All pivots must rotate freely after tightening 

fasteners.

= T 

A: 33 ft-lb (44.7 Nm)



B: 60 ft-lb (80 Nm)

REAR CRANK

UPPER CARRIER WHEEL ASM.

REAR PIVOT

PLUG

CRANK BUSHINGS

A

B

B

A

B

B

A

A

CRANK BUSHINGS

CRANK BUSHINGS

PIVOT BUSHINGS

PIVOT BUSHINGS

BUSHING

BUSHING

WASHERS

BUSHING

BUSHING

PIVOT SHAFTS

WASHER

WASHER

SPACER

SPACER

METRIC FASTENERS

CAUTION

Some rail shaft fasteners are pre-coated with locking 

agent. Never re-use these fasteners once removed. 

Always use new pre-coated fasteners.

8.41

Steering and Suspensions

8

9923311 - 2010-2012 PRO-RIDE RUSH/Switchback/RMK Service Manual

© 2011 Polaris Sales Inc.

2011 Progressive 121 Bumper/Closeoff Assembly

Assembly Notes

• Never re-use lock nuts. Always replace with new 

parts.

• All pivots must rotate freely after tightening 

fasteners.

= T 

A: 33 ft-lb (44.7 Nm)



B: 3.6 ft-lb (5 Nm)



C: 9.5 ft-lb (7 Nm)

REAR BUMPER

REAR PIVOT

MID FLAP COOLER

REAR FLAP

A

A

MID FLAP

A

A

B

B

C

C

METRIC FASTENERS