If you buy used R/T or SRT sideskirts you have mounting clips unlike the plastic rails that the mopar kit R/T skirts come with. You are either left with removing them and using 3M tape, or figuring out where to measure all the holes. I had a stripped SRT shell so I took advantage and gathered the measurements.
As a side note, I completely forget what size drill bit was needed to drill the final hole size.

Ok. To begin you will need:
- A tape measure
- masking tape
- Sharpie
- Drill and various size bits
- center punch
- hammer
first take the tape measure and sit the end 90* ledge of it (circled in red) on the top of the rocker panel door sill while the door is open. Hold the tape against the body and measure down 3/4" and mark this on the rocker panel. Do this every few inches so you can lay the tape straight.

Now lay a length of masking tape along the rocker either with the top flush with your 3/4" marks or with the marks covered up and you can measure and mark again. This line parallel to the ground 3/4" below the sill will be your line for marking off the locations of the holes to drill.
This is where patience or a friend comes in handy. You need to tape the end of the tape measure inside the rear wheel well and run the tape the length of the rocker panel and mark the measurements I have provided in the diagram.
Double or triple check your measurements because once you drill that's it!
Start with a center punch to mark the holes then start with a small bit for the pilot holes and work your way larger until the final size.
You will also need to drill 2 holes in the rear wheel openings to screw the ends of the rear skirts in place. I still havent done this yet as I've been too lazy to take the wheels back off.
As for the screws under the skirts, I used self tapping Teks screws for this. Use the shortest ones you can find. Maybe use the roofing ones as they have a rubbery seal on them which is what the OEM ones have with the mopar kit to avoid rusting.
Hope this helps.
