Tube Seals for a Jeep Wrangler JL Dana 30 Keep the dirt and grime out of your Jeep Wrangler JL Dana 30 axle tubes with RCV tube seals. The kit comes complete with 2 re-buildable tube seals, each with 3 O-ring seals on the outer and 2 washer seals on the iYour shipping charge will need to be calculated based on the weight of package and destination.