You haven't lost a thing. That's the well documented issue with the 2003-2008 Grizzly 660's.
Google Grizzly 660 front driveshaft" and you'll read hundreds, if not thousands of posts about the subject.
If the splines are worn, you'll need a new driveshaft and coupler to fix it.
This problem is easily permanently fixed by moving the front diff back in the frame by elongating the mounting holes in the frame using a file.
Google Grizzly 660 front driveshaft" and you'll read hundreds, if not thousands of posts about the subject.
If the splines are worn, you'll need a new driveshaft and coupler to fix it.
This problem is easily permanently fixed by moving the front diff back in the frame by elongating the mounting holes in the frame using a file.