info for you
I am not totally sure on this, but you will most likely need to remove the floor plate, drop the locking block, remove the lever as well as the hammer for the bolt to slide out the back of the receiver.
You will have to remove the screws holding everything in to remove the parts that I mentioned to you. It might be best to search the Winchester website and see if they have a diagram of the rifle to get a better look at it before you begin. It isn't too complicated if you have done it before, but the first time can be a little bit intimidating.