Test equipment for vehicles, namely, four-square test machines, gearboxes, spindles, bearing cartridges, inertia flywheels, shafting and couplings, dynamometer skids, power drive units, power absorption units, lubrication systems, Parallel Axis Gears, Hypoid and Bevel Gears, Planetary Gear Systems, Chains and Sprockets, Belts and Sheaves, Bearings, Rollers, Clutches, Brakes, Transmissions, Engines, Compressors, and Turbines for testing powertrain systems, all the foregoing being component parts of dynamometers, or of apparatus for wear-testing or performance testing of powertrain components; Test equipment for vehicles, namely, dimensional gauges; Test equipment for vehicles, namely, recorded and downloadable operating software for dynamometers, shafts, gears, bearings, pistons, turbochargers, blocks and heads, gearbox housings, constant velocity joints, compressors, and pumps for dimensional gauging; Test equipment for vehicles, namely, dynamometers; Test equipment for vehicles, namely, gearboxes, inertial flywheels, and high speed shafting and couplings for gears all being component parts of dynamometers