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
Rim Drive Wizard Island along the way. Continuing north on Rim Drive past the North Entrance Road junction, visitors traverse the back side of Llao Rock. This is the beginning of "East Rim Drive". The next turnout for viewing the lake is approximately two miles beyond the North Entrance Road junction. Viewpoints along East Rim Drive are generally not crowded except at the Cleetwood Cover parking area which is at the north end of Crater Lake. Cleetwood Cove is the trailhead for the only hiking trail down into the crater. The National Park Service maintains a marina for boat tours at Cleetwood