I saw an article in an ATV magazine stating that the new 350 IRS comes with a diff lock. I'm assuming they meant a front diff lock, does any one know the answer to that? I'm hoping that I can retrofit the diff lock to my Grizzly 350.

 

The Yamaha site says the 2007 and the 2008 has a diff locker. I have never heard of this term being used for the rear of a quad. What quad do you have? Both the 07 and 08 have direct front shaft without U-joints. I would think that you would need to replace the diff to get the locker. But who knows, maybe there is a plate that can be removed and the locker slapped on to it.