Hotchkis 19105 300C SRT8 & Charger SRT8 Sport Coil Springs - Manual (Page 10)

9) You should now be able to easily access the stock springs. Keep track of the rubber spring isolators
located on the top and bottom of the spring. You will be using them for reinstallation.
11)
Place your new Hotchkis coil springs in the same position as the stock springs were.
Note: The lower rubber isolator is shaped to lay in a specific position. Make sure to install the spring
with this in mind.