H-drive H-drive An H-drive drivetrain is a system used for heavy off-road vehicles with 6×6 or 8×8 drive to supply power to each wheel station. H-drives do not use axles but rather individual wheel stations, usually carried on a punt chassis. A single differential splits the drive into separate left and right drive shafts, which each run fore and aft inside the bottom corners of the chassis. At each wheel station a bevel box drives the half shaft out to the wheel. H-drive is not commonly used for 4 wheel vehicles, as it is relatively complicated for small vehicles. It has
Skyline Drive south and comes to Elkwallow, which hosts restrooms, picnic grounds, a camp store, and food service. Skyline Drive continues along and comes to the Jeremys Run Overlook on the west side of the road before it winds to the east. The roadway comes to the east-facing Thornton Hollow Overlook and heads back to the south, coming to the Beahms Gap Parking on the west side of the road. The drive traverses Pass Mountain as it continues to the south. Skyline Drive comes to an interchange with US 211 at the Thornton Gap Entrance Station, which is located in Thornton Gap