Spread a very small, thin amount around the hole. This will stop the posts from scratching the paint. Considering its uses, it's an important and inexpensive addition to your toolbox. 10 Soft Bumpers should be one of the first hop ups for your car. It will not only save your chassis but it will also save wear and tear on your body.
Bodies have a tendency to break just above the front tires.
The bumpers will not allow the body to flex and cause a breaking point. Your body will last 3-4 times longer with a soft bumper. 9 Super Clean is one of the best cleaners you will find. It's great to clean all lubed parts in your car. It works great on the diff rings, spur gear and the dampner rings.