Well I was going to shimm the diffs in my Savage X and noticed that there are no shims between the ring gear and bearing. I read through the posts and well here is the link that Jeremy gave me. http://www.midmad.com/ek4/shim/ek4shim.html you can see from the pic that there are two shims on the pinion shaft well my savy doesnt have them. Don't even see them in the manual. Don't know what to do. To shim or not to shim that is the question.