Oil holes in top gears - gone!

[Turboflash]

FYI- I was just informed by Country Cat that Arctic Cat top hyvo gears no longer have oil holes. Maybe this is old news to some. Country Cat says Cat upgraded the bushing material and the oil holes are no longer needed. There is likely still some inventory out there of the earlier gears with holes.

 

[REDLINE 1]

FYI- I was just informed by Country Cat that Arctic Cat top hyvo gears no longer have oil holes. Maybe this is old news to some. Country Cat says Cat upgraded the bushing material and the oil holes are no longer needed. There is likely still some inventory out there of the earlier gears with holes.

I wonder if they are necessary? Doesn’t that gear spend most of its life locked to the shaft? Only spins on the shaft when in reverse?

 

[Turboflash]

Yes. That is correct. Gear only turns on shaft when sled is in reverse.
There's many pages of discussion on this subject (going back to 2017) on this forum for those who want to catch up on the whole subject.

 

[REDLINE 1]

My Scott Taylor gear does have the oil holes so when I installed the Prevost bushing I did drill the holes threw I figured it wouldn’t hurt

 

[Srxspec]

The stock bushing still sucks, even in 2026 models!

 

[KnappAttack]

Just put a Hurricane roller bearing in and be done with the entire problem with bushings if looking for bulletproofing the top gear.