1, Air suspension spring bags installed on the Truck, Coach and Trailer are designed usually as generic types. 3, You can distinguish specific model of air suspension spring bags on your Autotruck/Heavy-Duty Truck/Touring Car/Passenger Coach/Trailer by checking original SPN(Supplier Part Number) listed as below, all of which has a consistent one-to-one match with specific Firestone Part Number. Stud A permanent part of the bead plate assembly used to attach the airspring to the suspension. Combo Stud Combination mounting stud and air fitting. Blind Nut A permanent part of the bead plate assembly providing an alternate mounting system to the stud. Air Fitting Hole A tapped hole usually 1/4 N. Providing air entrance for the part. The heart of an Airide spring. Includes at least four plies, or layers, of material-an inner layer, two plies of cord-reinforced fabric, and an outer layer. Bumper (Optional) A solid molded rubber fail-safe device used on many suspension applications. Prevents excessive damage to vehicle and suspension in the case of sudden air pressure loss. Piston The lower section of the 1T and 1X style of airspring made from aluminum, steel or fiber reinforced plastic. Provides lower mounting arrangement for the airspring in the form of tapped holes or studs. Piston Bolt Attaches the piston to the bellows assembly. Extended, in some cases, to serve as a means of attaching the spring to the suspension. Girdle Hoop A ring between the convolutions of the convolutedtype air spring. Vent all air pressure from the air suspension system prior to disconnecting or removing any air suspension components. It is dangerous to remove air suspension components while under pressure. Failure to follow this instruction may result in serious personal injury. Any air spring which is unfolded must be refolded prior to being installed in a vehicle. Refer to the procedure. If a vehicle has been driven with an incorrectly folded air spring, a new air spring must be installed. Failure to follow these instructions may result in serious injury to vehicle occupant(s). Failure to observe the following instructions may result in a sudden failure of the air spring or suspension system. Any rear spring which is unfolded must be refolded prior to being installed in a vehicle. The air spring refolding procedure should only be used for an air spring which has never supported the vehicle’s weight while in the incorrectly folded position. Do not attempt to inflate any air spring which has been collapsed while uninflated from the rebound hanging position to the jounce stop. When installing a new air spring, care must be taken not to apply a load to the suspension until springs have been inflated using the air spring fill procedure. After inflating an air spring in the hanging position, it must be inspected for correct shape. NOTE: The vehicle must be positioned on a suitable lifting device prior to deflating the air suspension system. With the vehicle in NEUTRAL, position on a hoist until the wheel and tire assemblies are slightly above the ground. Using the scan tool, vent the air springs. Remove the air spring retainer. Detach the air spring from the rear axle. Remove the air spring in the following sequence. Disconnect the air spring solenoid electrical connector. Compress the quick connect locking ring and pull out the air tube. Remove the air spring. No need to drill. Provides Up To 5000lbs Capacity. Increase stability and improve ride quality. Keep your vehicle level when you are hauling a heavy load. Improve steering control and braking when you are hauling or towing. Reduce strain on rear suspension. Military Grade Armor Steel to ensure strength. Directly Bolts In To Factory Holes. Two – Standard 2500lb Air Springs w/Mounting Hardware. Please double confirm the compatibility as well as the OEM number before purchasing. Instruction is not included. Professional installation is recommended. Overload bags 2500 airbags tow level kit. 0.5″ – 3″ Adjustable Rear. 5000lbs load 3/4 ton tow. Suspension Lift Kit Bracket Kit. Just like the picture, Professional installation required. International Buyers C Please Note. These charges are the buyers responsibility. The note there will NOT be read. A: MY store accepts. Q: How do I return an item? Please contact our customer service before you return an item. We will work hard to make sure EVERY CUSTOMER 100% SATISFIED and resolve any problem for you and always leave a feedback to all our customers. If you are satisfied with the product you received, wish you can leave us a feedback. ABS Wheel Speed Sensor. AC Compressor Control Valve+A. AC Condenser & Radiator. Adjustable Control /Camber Arm. Air Cleaner Filter Box. Air suspension valves solenoid. ATV Brake Master Cylinder. 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Alternator for 110Amp Chrome Street Rod GM 305 350 BBC SBC 1 Wire Self Exciting. Inline Universal High Pressure Fuel Pump With Installation Kit 0580464070. Fuel Pump For Chevy S10 GMC Sonoma Hombre 4.3L 97-02 Isuzu Hombre 4.3L 97-20. 2pc 3157 4114 4157 LED DRL Driving Daytime Running Light Bulbs 12SMD 6000K White.