Yeah, I've been trying to find the instructions for the SC-104P, but on every page across the internet, the linked instructions are for the SC-203P, for a FORD. There it says there is no drilling. I chatted with RT and they refuse to provide the correct instructions and claim there's no drilling. Typical BS with them. Lies to make the sale and out the door, then good luck if you run into issues. Went round in circles for 2 months on a replacement for a Revolver. On Amazon, sure seems like alot of folks complaining about broken hinges, etc. Now that I know RT owns UC, umm, no thanks.