AIR SUSPENSION COMPONENTS

Our GMC Motorhomes were designed with a unique, automatic leveling, load adjustable air suspension system that can be manually set, when parking, to self-level the coach. The system operates using a set of compressor, valves, and controls in conjunction with air springs.  We commonly call these “Air-Bags” but don’t confuse them with the collision protection air bags that are installed in modern vehicles for passnger safety in collisions. NOTE:  It is very important to replace the air springs on both sides of coach in order to provide steady, even ride and handling. Replacement Air Bags (Air Springs) Dual Air Bag System The original factory air bags are no longer being manufactured by Firestone for our coaches  Therefore we have engineered a replacement system that uses two currently available Firestone air bags working together on each side. This solution provides: o Same suspension feel as original equipment. o Same Handling as original. o Same approx. diameter as original o Same suspension travel as original. o Same operating air pressure as original. o Same ride height on your coach o Same load carrying capacity as original. o Readily available Firestone US air bags. o Independent filler on side of coach. o Installation kit includes air bag isolation valve, distribution block and filler extension. o NOTE:  Isolation kit allows ride level to be maintained in the event of internal air suspension control system or compressor failure.                               Dual Air Bag System Individual replacement bags are available Installation Kit from Firestone US Installed Dual Air Bag System Note remote filler valve Replacement Air Bags (Air Springs) Daytona Air Bag System This repalcement is one single chamber bag with waistband for each side.  The waistband keeps the air bag from “bulging” in the middle and helps maintain load capacity. This solution provides: o Direct bolt-in replacement for original air spring. o Firmer suspension feel . o Slightly larger diameter than original o Reduced suspension travel compared to original provides firmer ride. o Same operating air pressure as original. o Same ride height on your coach o Same load carrying capacity as original. o Readily available Firestone US air bags. o NOTE:  Isolation kit, shown below,  allows ride level to be maintained in the event of internal air suspension control system or compressor failure. Daytona Air Bag Daytona Air Bag AIR BAG ISOLATION KIT A useful upgrade to the air suspension system is to add an isolation valve on each side so that the bags can be isolated from the interior controls and compressor. This is particularly useful when their is a failure of the control system or compressor.  It allows for the bags to be individually filled and isolated from the system to maintain ride height during system failure. Installation kit includes valves and fittings necessary to connect to the existing tubing system. AUTOMATIC LEVELING VALVE A newly engineered upgrade replacement for the original GMC automatic leveling valve.  This valve attaches to the rear suspension arm via the adjustable link shown below to allow the air suspension system to automatically achieve level ride height.   ADJUSTABLE LINKS FOR LEVEL RIDE SYSTEM The factory leveling valve links are not adjustable.  We have engineered an adjustable link to allow adjusting the ride height AIR SUSPENSION REPLACEMENT COMPRESSOR The factory leveling system original compressor is no longer available. We offer a replacement unit made by Firestone US that is quieter than the original, moves more air which will allow for quicker fill time, and seems to be extremely dependable. Our large stock of parts enables us to complete repairs quickly in most cases without waiting for parts to be ordered or delivered. See our parts department  
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AIR SUSPENSION
GMC Design Center original clay model for GMC Motorhome

AIR SUSPENSION

COMPONENTS

Our GMC Motorhomes were designed with a unique, automatic leveling, load adjustable air suspension system that can be manually set, when parking, to self-level the coach. The system operates using a set of compressor, valves, and controls in conjunction with air springs.  We commonly call these “Air-Bags” but don’t confuse them with the collision protection air bags that are installed in modern vehicles for passnger safety in collisions. NOTE:  It is very important to replace the air springs on both sides of coach in order to provide steady, even ride and handling. Replacement Air Bags (Air Springs) Dual Air Bag System The original factory air bags are no longer being manufactured by Firestone for our coaches  Therefore we have engineered a replacement system that uses two currently available Firestone air bags working together on each side. This solution provides: o Same suspension feel as original equipment. o Same Handling as original. o Same approx. diameter as original o Same suspension travel as original. o Same operating air pressure as original. o Same ride height on your coach o Same load carrying capacity as original. o Readily available Firestone US air bags. o Independent filler on side of coach. o Installation kit includes air bag isolation valve, distribution block and filler extension. o NOTE:  Isolation kit allows ride level to be maintained in the event of internal air suspension control system or compressor failure.                               Dual Air Bag System Individual replacement bags are available Installation Kit f r o m   F i r e s t o n e   U S Installed Dual Air Bag System Note remote filler valve Replacement Air Bags (Air Springs) Daytona Air Bag System This repalcement is one single chamber bag with waistband for each side.  The waistband keeps the air bag from “bulging” in the middle and helps maintain load capacity. This solution provides: o Direct bolt-in replacement for original air spring. o Firmer suspension feel . o Slightly larger diameter than original o Reduced suspension travel compared to original provides firmer ride. o Same operating air pressure as original. o Same ride height on your coach o Same load carrying capacity as original. o Readily available Firestone US air bags. o NOTE:  Isolation kit, shown below,  allows ride level to be maintained in the event of internal air suspension control system or compressor failure. Daytona Air Bag Daytona Air Bag AIR BAG ISOLATION KIT A useful upgrade to the air suspension system is to add an isolation valve on each side so that the bags can be isolated from the interior controls and compressor. This is particularly useful when their is a failure of the control system or compressor.  It allows for the bags to be individually filled and isolated from the system to maintain ride height during system failure. Installation kit includes valves and fittings necessary to connect to the existing tubing system. AUTOMATIC LEVELING VALVE A newly engineered upgrade replacement for the original GMC automatic leveling valve.  This valve attaches to the rear suspension arm via the adjustable link shown below to allow the air suspension system to automatically achieve level ride height.   ADJUSTABLE LINKS FOR LEVEL RIDE SYSTEM The factory leveling valve links are not adjustable.  We have engineered an adjustable link to allow adjusting the ride height AIR SUSPENSION REPLACEMENT COMPRESSOR The factory leveling system original compressor is no longer available. We offer a replacement unit made by Firestone US that is quieter than the original, moves more air which will allow for quicker fill time, and seems to be extremely dependable. Our large stock of parts enables us to complete repairs quickly in most cases without waiting for parts to be ordered or delivered. See our parts department  
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Alex Sirum GMC Motorhomes, Inc. 1800 Hwy 70 East Okeechobee, FL 34972 Phone: (863)763-1121  Fax: (863)763-1124