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
Side road Side road A side road is a minor highway typically leading off a main road. A side road may be so minor as to be uncategorized with a road number. In an urban area, a side road may be a narrow street leading off a more major street, especially in a residential area. A side street is a street that intersects a main street and ends there. It is generally of little importance to through traffic. Being the last mile of the road system, it generally carries little traffic. Common characteristics of a side street include low speed limits (usually