Is there any options on this beside oem, $50 for a boot and 2 bands seems a bit much.
Part # 3435-067 , bands are sold separately wtf

 

While not a perfect fit the outboard axel boot off s 04 660 grizzly fits perfect on the large dia and only .075 loose on the small end. Being i had one on had I gave it a whirl and it will work just fine. it is also a b a 3 bellows boot instead of just 2 but it squeezed in ok.