| To slow our reduce oscillation or movement. | |
| A means through vehicle information can be extracted with a scan tool, a standard 16 pin connector which reads stored codes from the vehicle. | |
| Downward gear engagement in which the input shaft and output shaft are locked together; the gearing in the drivetrain in which one turn of the crank shaft equals one turn of the wheel. | |
| The lower Engine part with main rod bearing journals. It converts reciprocating motion to rotary motion. |