Arctic Cat has replaced the spiral cut gears with straight cut gears

You will need to replace both bevel gears, Arctic Cat had made kits that include both gears

If you have a 650 H1 or 700 H1 use kit number 0822-146

If you have a 1000 H2 use kit number 0822-147

Kit Includes:

0828-019 1 Thrust Washer

0822-131 1 Secondary Gear

0822-106 1 Secondary Driven Gear

0822-143 1 Spur Drive Gear

0827-052 1 Nut

0828-021 3 Shim (25 x 34 x .25)

0828-022 3 Shim (25 x 34 x .30)

0828-023 2 Shim (25 x 34 x .35)

0453-577 1 Instructions

Replaces Part # 0822-122

Fits Models:

2005-2010 650 H1

2008-2009 700 H1