Glossary “independent rear suspension (IRS)” Definition:
1). Suspension system in which both rear wheels are free to move independently of the other, providing a reduction of unsprung weight as well as overall vehicle-weight reduction. 2). An independent suspension system at the rear of a vehicle.

Glossary “independent service” Definition:
General or specialty service provided by independent garages on all types and makes of vehicles.

Glossary “independent front suspension (IFS)” Definition:
Suspension system method of supporting the chassis on the wheels without the use of rigid axles where the movements of the two front wheels are not interdependent; one wheel does not force the other wheel to change its plane of rotation.