QN, a couple of things to watch for:
Removing the butt stock couldn't be much easier. There's a couple of rare problems that can occur, so I thought I should mention them, just in case.
If the through-bolt is tight, you may have to apply some elbow grease to get it loose. 99 times out of 100, this is routine. Once in a while, if twisting force is allowed to become lateral force (which can happen when exerting a great deal of energy to loosen a large bolt) a person could slap or jab the inside of the cave with the screwdriver. If this happens, there's a better than average chance that the screwdriver will come right through the side of the stock. This applies to wooden stocks because of the reduced thickness of the wood alongside the cavity for the through-bolt. Synthetic stocks don't have this issue.
The second thing to watch for is over-tightening the bolt when it is replaced. This can result in a cracked stock right away, or a stock that cracks during use later on. This issue can occur with wooden or synthetic stocks (worse with wood). The best way to avoid the possibility is to use a lock washer rather than over-tightening. The "serrated" type work better for this purpose than the split ring type.