Airbags are used for front-to-rear and side-to-side leveling control of a vehicle.

This enables a vehicle to "level up" when carrying heavy, uneven loads and when towing caravans, boats and trailers.

These kits, made in the USA by Firestone, are the proven way to improve suspensions on:

• 4WDs - all body styles
• Trucks - light and heavy
• Vans
• Utes - 2WD and 4WD

Several types are available, depending on:

• Vehicle size
• Load carried

The heavy duty double convoluted airbags are a two ply, reinforced rubber bellows.

They are air adjustable (10 PSI to 100 PSI) and used to carry heavy loads with both safety and comfort.

Load Ratings for Firestone Air Bellows are rated as follows:

• Small Utes: 1500 kg (1.5 tonne)
• Larger Utes (Landcruiser, Patrol etc): 2200 kg (2.2 tonne)
• Larger American Utes and Heavy 4WDs are generally rated higher than 2.2 tonnes.