Does anyone know the different lengths of the old Bear spring arm quivers, and what size fits a Kodiak Magnum or Grizzly? Plus, how do you put the dang thing on the bow? "It might be the wrong size"  

Depending on which one you're talking about there were several different lengths. The 4 arrow came in long and short. The short fit bows between 48" and 56". The long between 58" and 64". They were non-adjustable and right/left specific. The 8 arrow came in 3 lengths. The top arm could adjust up or down and the bottom arm was different lengths. They were right /left specific as well. As far as how to put them on, I can't post pic's here, but research some old Bear catalogs and you'll see how.

Thanks for the help. The quiver fits my Kodiak Magnum. I was lucky it is right handed. Plus, it is pretty quiet when shooting.