I just bought a corbin gunfighter on ebay and it didn't have the bolt for the back fender. My question is can I take off the one from the stock seat. Also, what do I do with the two side holes that are left open?
Don't use the screw off of your factory seat. You can get a seat screw at the HD shop for a replacement. When the wife had her Heritage and put the Corbin on we found some chrome covers that covered the side bolt holes.
I use a simple chrome phillips head screw.
I don't use a thumb screw. That way, the chances of your seat being stolen is very slight.
Looks better too.