Kit for Big Foot RV and all E350 & E450 Chassis - DL1E Kit Includes 2 Outer Dually Valves, 2 Inner Dually Valves 7 1/8 Effective Length, 2 Round Rubber Wheel Grommet Stablizers, & ThreadLock. $110.00 (+ $8.00 S/H) Kit for Big Foot RV and all E350 & E450 Chassis - DL1EC Kit Includes 2 Outer Dually Valves, 2 Inner Dually Valves 7 1/8 Effective Length, 2 Round Rubber Wheel Grommet Stablizers, & ThreadLock. Chrome Stems $120.00 (+ $8.00 S/H) Note: 7 1/8" Inner valve protrudes through the outer handhole by 2". SC1046 Double Seal Cap - Eliminates Need for valve caps on truck and motorhome valve stems, effectively reducing tire servicing time on fleet service operations. Rubber washer seals at valve mouth and an O'ring seals at extension mouth. Threads allow use of clip-on chucks. 3/4 effective length. $2.50 Each Kit for Round 8 Hole - DL2E Kit Includes 2 Outer Dually Valves, 2 Inner Dually Valves 6 1/8" Effective Length, 2 Round Rubber Wheel Grommet Stablizers, & ThreadLock. $110.00 (+ $8.00 S/H) Kit for Round 8 Hole - DL2EC Kit Includes 2 Outer Dually Valves, 2 Inner Dually Valves 6 1/8" Effective Length, 2 Round Rubber Wheel Grommet Stablizers, & ThreadLock. Chrome Stems. $120.00 (+ $8.00 S/H) Note: 6 1/8" Inner valve protrudes through the outer handhole by 1".