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
Storrow Drive 1 is now routed concurrently along Interstate 93. The parkway is named for James J. Storrow, an investment banker who led a campaign to create the Charles River Basin and preserve and improve the riverbanks as a public park. He had never advocated a parkway beside the river, and his widow publicly opposed it. The road is notorious for speeding and aggressive driving because police enforcement along the road is difficult without a breakdown lane. Radio traffic reports have warned motorists about "ponding" on Storrow Drive, which occurs when snow and frozen ground prevent water from draining properly into storm