Over time, due to heavy use and mileage, the track arm holes tend to become egg shaped causing the pickup truck to become unsafe to drive. This product is inserted into the cleaned up egg shaped holes by replacing them with a simple bushing. The advantage to using this bushing is the surface area created by the larger diameter bushing washer that has taken the place of the original hole. The hardened machined DOM allows the track arm to become stable again, making the truck safe to drive.