keiysholck 57365 Rear Air Spring Bag Suspension Kits Installation Guide

keiysholck 57365 Rear Air Spring Bag Suspension Kits

Product Information

Specifications

• Compatible with: Dodge RAM 1500 2011-2018, Dodge RAM 1500 Classic 2019-2023, Dodge RAM 1500 Pickup 2009-2010
• Kit Options: 57365 (Zinc-plated steel roll plates, black nylon air lines), 88365 (Black powder-coated roll plates, black nylon air lines), 89365 (Stainless steel roll plates, braided stainless steel air lines, stainless steel hardware)
• Single valve inflation system
• Ultimate Plus upgrade kits available with braided stainless steel air lines and fittings

Product Usage Instructions

Identifying the Differences Between Kits

If you need assistance or have inquiries, make sure to identify your kit correctly based on the following:

• 57365: Zinc-plated steel roll plates, black nylon air lines
• 88365: Black powder-coated roll plates, black nylon air lines
• 89365: Stainless steel roll plates, braided stainless steel air lines, stainless steel hardware

Installation Instructions

Important Safety Notice

Prioritize safety during installation. Follow the instructions carefully and ensure there is enough space for the air spring to function without friction.

Notation Explanation

The installation instructions are based on the left side of the vehicle, with the right side following the same method as the left.

Getting Started

Begin by assembling the air springs according to the provided\ diagrams. Make sure all hardware and tools are ready for installation.

Assembling the Air Springs

Follow the provided diagrams and instructions to correctly assemble the air springs before proceeding with installation.

Installing the Assemblies

Securely install the assembled air springs onto the designated areas of the vehicle chassis as per the installation manual.

Installing the Air Lines

Connect the air lines according to the provided guidelines, ensuring proper sealing and connections for optimal performance.

Before Operating

After completing installation, review all connections and ensure everything is secure before operating your vehicle.

FAQ

Q: How do I know which kit I have purchased?

A: You can identify your kit by checking the roll plates and air lines. The kit number should match the descriptions provided in the manual.

Q: Can I install this kit on my vehicle without professional help?

A: While installation instructions are provided, it is recommended to seek professional assistance to ensure proper installation and functionality.

Q. Will installing air springs increase the weight ratings of a vehicle?

No. Adding air springs will not change the weight ratings (GAWR, GCWR and/ or GVWR) of a vehicle. Exceeding the GVWR is dangerous and voids the warranty.

Q. Is it necessary to keep air in the air springs at all times and how much pressure will they need?

For 7X 57365 standard, Ultimate and Ultimate Plus, the recommended minimum air pressure is 5 PSI, but it can safely be run at zero air pressure unladen (no load).

Q. Is it necessary to add a compressor system to the air springs?

No. Air pressure can be adjusted with any type of compressor as long as it can produce sufficient pressure to service the springs. Even a bicycle tire pump can be used, but it’s a lot of work.

How long should air springs last?

If the air springs are properly installed and maintained they can last indefinitely.

Q. Will raising the vehicle on a hoist for service work damage the air springs?

No. The vehicle can be lifted on a hoist for short-term service work such as tire rotation or oil changes. However, if the vehicle will be on the hoist for a prolonged period of time, support the axle with jack stands in order to take the tension off of the air springs.

Product Information

Thank you for purchasing the 7X 57365 | 88365 | 89365 Kit! Please kindly be advised to read the instructions carefully before installing the air spring kit. Please take safety precautions accordingly during installation. The installation instructions are based on the left side or based on the driver’s side of the vehicle, and the structure on the right side can refer to the same method on the left side. The retrofit kit you purchased is a single valve inflation system. Please note that the air spring will bend and expand under working conditions. Ensure there is enough space for it to work properly and avoid friction between the air spring and other chassis parts.

IDENTIFYING THE DIFFERENCES BETWEEN KITS

Should you need to contact customer service, you will need to know which kit you are inquiring about: standard 7X 57365, 7X 88365 or 7X 89365. The kits are easily identifiable by looking at the roll plates and air lines.

• 7X 57365 — Zinc-plated steel roll plates and black nylon air lines.
• 7X 88365 — Black powder-coated roll plates and black nylon air lines.
• 7X 89365 — Stainless steel roll plates, braided stainless steel air lines, stainless steel air spring mounting hardware.

Offers two Ultimate Plus upgrade kits:

Braided stainless steel air line and fittings. Stainless steel roll plates, air spring mounting hardware, braided stainless steel air lines and fittings.

Installation Diagram

NOTE: PROFESSIONAL MECHANICAL SKILLS ARE NECESSARY IN ORDER TO COMPLETE THE INSTALLATION OF THIS KIT.

Hardware and Tools Lists

Common Parts Included in All 3 Kits

not pictured in the Installation Diagram

TOOLS LIST

The photos in this manual show the 7X 88365 kit.

7X 57365

7X 88365

7X 89365

Introduction

The purpose of this publication is to assist with the installation, maintenance and troubleshooting of the standard 7X 57365, 7X 88365 or 7X89365 air spring kits. All 7X 57365 Series kits utilize sturdy, reinforced, commercial-grade single or double, depending on the kit, convolute bellows. 7X 88365 kits add an internal jounce bumper and black powder-coated roll plates. 7X 89365 kits also have an internal jounce bumper, but add stainless steel roll plates, air lines and air spring mounting hardware. The air springs are manufactured like a tire with layers of rubber and cords that control growth. 7X 57365 series kits are recommended for most 3/4- and 1-ton pickups and SUVs with leaf springs and provide up to 5,000 pounds of load-leveling support with air adjustability from 5-100 PSI. It is important to read and understand the entire installation guide before beginning installation or performing any maintenance, service or repair. IMPORTANT SAFETY NOTICE The installation of this kit does not alter the gross vehicle weight rating (GVWR) or payload of the vehicle. Check the vehicle’s owner’s manual and do not exceed the maximum load listed for this vehicle. Gross vehicle weight rating: The maximum allowable weight of the fully loaded vehicle (including passengers and cargo). This number — along with other weight limits, as well as tire, rim size and inflation pressure data — is shown on the vehicle’s Safety Compliance Certification Label. Payload: The combined, maximum allowable weight of cargo and passengers that the truck is designed to carry. Payload is GVWR minus the base curb weight. NOTATION EXPLANATION Hazard notations appear in various locations in this publication. The information which is highlighted by one of these notations must be observed to help minimize risk of personal injury or possible improper installation which may render the vehicle unsafe. Notes are used to help emphasize areas of procedural importance and provide helpful suggestions. The following definitions explain the use of these notations as they appear throughout this guide.

• INDICATES IMMEDIATE HAZARDS THAT WILL RESULT IN SEVERE PERSONAL INJURY OR DEATH.
• INDICATES HAZARDS OR UNSAFE PRACTICES THAT COULD RESULT IN SEVERE PERSONAL INJURY OR DEATH.
• INDICATES HAZARDS OR UNSAFE PRACTICES WHICH COULD RESULT IN DAMAGE TO THE MACHINE OR MINOR PERSONAL INJURY.

Installing the 7X 57365 Series System

GETTING STARTED

In order to install the upper frame brackets (A), it will be necessary to remove the coil springs as follows:

1. Lift the vehicle up and support the frame with jack stands. Leave enough room to drop the axle down low enough to remove the coil springs (Fig. 2). Remove the rear wheels.

2. Mark the bottom of the right-hand and left-hand coil springs and lower spring seat mounts with chalk or a paint marker to make sure the spring is put back the same way it is removed (Fig. 3).

3. Remove both lower shock bolts and slowly lower the axle until the springs can be removed.
   Lower the axle carefully and avoid putting stress on the flexible brake lines.

4. Remove both jounce bumpers from both sides (Fig. 4).

5. Grind the welds off the jounce bumper cups that attach them to the jounce bumper frame bracket (Fig. 5). Remove and discard from both sides of the vehicle

6. Grind the remaining welds flush to the frame (Fig. 6). Spray the frame with paint or undercoating to cover the bare surface after grinding (Fig. 7).

7. Install the socket head M8 bolt (M) into the frame bracket (A) slot closest to the flange on the bracket (Fig. 8). Cap with the nylon lock nut (O) as shown (Fig. 9).

8. Leave socket head M8 bolt (M) loose at this time.

9. Set the frame bracket (with the socket head bolt in it), on the frame, with the flange pointing up. Insert the socket head bolt into the existing hole in the frame that was under the stock jounce bumper (Fig. 10).

10. The bracket should sit flush to the bottom of the frame. If there is any leftover weld holding the bracket off the frame, remove and grind down so the bracket is flush.

11. With the socket head bolt in the hole, push the flange against the side of the frame (Fig. 11) and mark the existing hole under the frame with a paint marker (Fig. 12).
    NOTE
    If possible, with the bracket in position, use a 21/64 (or closest) centering punch to fit into the hole and center-punch the frame for an exact center of the hole.

12. Center-punch the frame and drill a 1/4” hole (Fig. 13). Start a 5/16” self-tapping screw (K) into the hole, making sure it is straight, and tighten it enough to form the threads needed to set the screw (Fig. 13). Remove the screw once threads are formed.

13. Set the bracket back in place on the frame and bolt into position using the self-tapping screw previously set into the frame. Tighten the screw making sure the washer head portion of the screw is flat to the bracket, and torque to 15 lb.-ft. (20Nm).

14. Make sure the bracket is flat to the bottom of the frame, center punch and drill through the frame with a 1/4” bit using the holes in the side of the flange as a guide (Fig. 14).

15. Install two more self-tapping screws (K) in the side, making sure the flat head portion of the bolt is flush to the bracket, and torque to 15 lb.-ft. (20Nm) (Fig. 15). Repeat for the other side.

16. Once the frame brackets have been installed on both sides, the stock suspension can be put back together.

17. Set the coil springs back into position using the index marks from the previous step and raise the axle back up making sure the spring indexes into the top and bottom spring seats correctly.

18. Reinstall the wheels and lower the vehicle so the wheels rest on the ground. Torque the lug nuts to the manufacturer’s torque specs.

19. Install the lower shock bolts back onto the axle and torque to 135Nm (100 lb.-ft.).

ASSEMBLING THE AIR SPRINGS

1. Set a roll plate (E) onto the air spring (D).
   The radius (rounded) edge of the roll plate (E) will be toward the air spring, so that the air spring is seated inside both roll plates.

2. Install the swivel fitting (F) into the top of the air spring finger tight plus 1 1/2 turns
   It is recommended that the air nozzle (F) be wrapped with PTFE TAPE during assembly

3. Insert four carriage bolts (L) into the upper air spring bracket (B) and set the upper bracket onto the air spring assembly (Fig. 17).

4. Attach the upper air spring bracket using two 3/8” hex-head bolts (H), two lock washers (I) and two flat washers (J). Torque to no more than 20 lb.-ft. Repeat for the opposite side. Figure 18 shows both upper assemblies.

5. Flip the air spring assemblies upside down and set a roll plate (E) over the air spring (same as in step one).

6. Position the air spring assemblies so that the fittings are outboard and away from each other (Fig. 19). NOTE
   The finished assemblies will be left and right-hand specific, and the fittings that are on the top of the air springs should be facing the outside (tire side) of the vehicle once into position.

7. Set the left lower bracket (C1) onto the left side assembly and attach with two 3/8” flat-head screws (G). Assemble the other air spring using the right-side lower bracket (C2). Torque to no more than 20 lb.-ft. (27Nm) (Fig. 19). Figure 20 shows the completed assemblies.

INSTALLING THE ASSEMBLIES

1. Index a 3/8” carriage bolt (L) into the opening on the front of the driver’s side assembly as shown (Fig. 21).

2. Drop the axle again to gain clearance to put the two assemblies into position on the axle.

3. Set the left (driver’s) side assembly into position with the carriage bolt still in the slot (previously installed). Set into place on the axle, making sure the back of the bracket is “hooked” below the jounce bumper strike plate. Push the assembly forward while lining up the carriage bolt with the existing hole in the front of the lower jounce bumper strike plate (Figs. 22 & 23). Cap the carriage bolt with a 3/8” serrated lock nut (N), but leave loose at this time.

4. Insert another 3/8” carriage bolt (L) through the remaining hole in the front side of the bracket (Fig. 24).

5. It will be necessary to use a socket with an extension to reach the inside threads on the carriage bolt previously set into position (Fig. 25). It may be helpful to pull the carriage bolt out slightly so that it can be angled enough to get started on the thread

6. Set the right (passenger’s) side assembly into position in the same way, indexing the lower bracket with the tabs under the jounce bumper strike plate and, with \the exception of using the slot for the carriage bolt in the lower bracket, install the carriage bolts in the same manner. Torque both sides of the lower bracket hardware evenly to 31 lb.-ft. (42Nm), making sure the tabs are still indexed under the jounce bumper strike plate. Figures 26 & 27 show the assemblies bolted into position.
   NOTE
   Fittings should be on the outside (tire side) of the assemblies.

7. Raise the axle back up while aligning the air spring mounting plate’s carriage bolts, with the frame mounting bracket holes. Cap all carriage bolts, once in position, with 3/8” serrated lock nuts (N) and torque all the installed nuts to 31 lb.-ft. (42Nm) (Fig. 28).
   

8. Left (driver’s) side shown with the assembly bolted up to the frame bracket (Fig. 29).

Installing the Air Lines

Air lines are routed from the air springs to Schrader valves. 7X 57365 Series air lines come in two styles: nylon and braided stainless steel. Begin by choosing locations for the Schrader valves and drill a 5/16” hole, if necessary (Fig. 30).

CAUTION

KEEP AT LEAST 6” OF CLEARANCE BETWEEN ALL AIRLINES AND THE EXHAUST SYSTEM. AVOID SHARP BENDS AND EDGES

INSTALLING NYLON AIR LINES

1. Cut the air line in half. Make clean, square cuts with a razor blade or hose cutter (Fig. 31). Do not use scissors or wire cutters.
2. Use zip ties to secure the air line to fixed points along the chassis. Do not pinch or kink the air line. The minimum bend radius for the air line is 1”. Leave at least 2” of slack in the air line to allow for any movement that might pull on the air line.
3. Install the Schrader valve in the chosen location (Fig. 32).

CAUTION

INSTALLING BRAIDED STAINLESS STEEL AIR LINES

KEEP THE AIR LINE AWAY FROM THE FUEL LINE, BRAKE LINES AND ELECTRICAL WIRES.

1. Use zip ties to secure the air line to fixed points along the chassis every 6” to 8”. Leave at least 2” of slack to allow for any movement that might pull on the air line.
2. Tighten the air line hex nut finger tight, then use 2 wrenches to turn 1 additional flat (1/6 of one full turn). Do not overtighten (Figs. 33 or 34). The easiest way to tighten the fitting is off the vehicle. Install the Schrader valve in the chosen location.
3. Coil and secure any excess air line in an area where it will not be susceptible to damage. The braided stainless steel air line cannot be trimmed.

Air Line Setup Without Compressor System

INSTALLING THE HEAT SHIELD

1. Attach the metal heat shield to the exhaust where it is closest to the air spring. Slide the air line thermal sleeve over the air line and place it where the air line is closest to the exhaust (Fig. 35).

Finished Installation Photos

1. Back view of left (driver’s) side assembly (Fig. 36).
2. Back view of right (passenger’s) side assembly (Fig. 37).

Before Operating

CHECKING FOR LEAKS

1. Inflate the air spring to 30 PSI.
2. Spray all connections and the inflation valves with a solution of 1/5 liquid dish soap and 4/5 water. Spot leaks easily by looking for bubbles in the soapy water.
3. After the test, deflate the springs to the minimum pressure required to restore the system to normal ride height. Do not deflate to lower than 5 PSI.
4. Check the air pressure again after 24 hours. A 2-4 PSI loss after initial installation is normal. Retest for leaks if the loss is more than 5 PSI.

FIXING LEAKS

1. If there is a problem with the swivel fitting:
   • a. Check the air line connection by deflating the spring and removing the line by pulling the collar against the fitting and pulling firmly on the air line. Trim 1” off the end of the air line. Be sure the cut is clean and square (see Fig. 31). Reinsert the air line into the push-to-connect fitting.
   • b. Check the threaded connection by tightening the swivel fitting another half turn. If it still leaks, deflate the air spring, remove the fitting, and re-coat the threads with thread sealant. Reinstall by hand tightening as much as possible and then use a wrench for an additional two turns.
2. If there is a problem with the inflation valve:
   • a. Check the valve core by tightening it with a valve core tool.
   • b. Check the air line by removing the air line from the barbed type fitting. Cut the air line off a few inches in front of the fitting and use a pair of pliers or vice grips to pull/twist the air line off of the fitting

CAUTION

DO NOT CUT OFF THE AIR LINE COMPLETELY AS THIS WILL USUALLY NICK THE BARB AND RENDER THE FITTING USELESS

INSTALLATION CHECKLIST

• Clearance test — Inflate the air springs to 75-90 PSI and make sure there is at least 1/2” clearance from anything that might rub against each sleeve. Be sure to check the tire, brakes, frame, shock absorbers and brake cables.
• Leak test before road test — Inflate the air springs to 75-90 PSI and check all connections for leaks. All leaks must be eliminated before the vehicle is road tested.
• Heat test — Be sure there is sufficient clearance from heat sources, at least 6” forair springs and air lines. If a heat shield was included in the kit, install it.
• Fastener test — Recheck all bolts for proper torque.
• Road test — The vehicle should be road tested after the preceding tests. Inflate the springs to recommended driving pressures. Drive the vehicle 10 miles and recheck for clearance, loose fasteners and air leaks.
• Operating instructions — If professionally installed, the installer should review the operating instructions with the owner. Be sure to provide the owner with all of the paperwork that came with the kit

POST-INSTALLATION CHECKLIST

• Overnight leak down test — Recheck air pressure after the vehicle has been used for 24 hours. If the pressure has dropped more than 5 PSI, then there is a leak that must be fixed. Either fix the leak yourself or return to the installer for service.
• Air pressure requirements — It is important to understand the air pressure requirements of the air spring system. Regardless of load, the air pressure should always be adjusted to maintain adequate ride height at all times while driving.
• Thirty-day or 500-mile test —Recheck the air spring system after 30 days or 500 miles, whichever comes first. If any part shows signs of rubbing or abrasion, the source should be identified and moved, if possible. If it is not possible to relocate the cause of the abrasion, the air spring may need to be remounted. If professionally installed, the installer should be consulted. Check all fasteners for tightness.

Product Use, Maintenance and Servicing

Minimum Recommended Pressure

• 5 PSI

Maximum Air Pressure

• 100 PSI

MAINTENANCE GUIDELINES

NOTE

By following the steps below, vehicle owners will obtain the longest life and best results from their air springs

1. Check air pressure weekly.
2. Always maintain normal ride height. Never inflate beyond 100 PSI.
3. If the system develops an air leak, use a soapy water solution (1/5 liquid dish soap and 4/5 water) to check all air line connections and the inflation valve core before deflating and removing the air spring. FOR SAFETY AND TO PREVENT POSSIBLE DAMAGE TO THE VEHICLE, DO NOT EXCEED MAXIMUM GROSS VEHICLE WEIGHT RATING (GVWR), AS INDICATED BY THE VEHICLE MANUFACTURER. ALTHOUGH THE AIR SPRINGS ARE RATED AT A MAXIMUM INFLATION PRESSURE OF 100 PSI, THE AIR PRESSURE ACTUALLY NEEDED IS DEPENDENT ON LOAD AND GVWR.
4. Loaded vehicles require at least 25 PSI. A “loaded vehicle” refers to a vehicle with a heavy bed load, a trailer or both. Never exceed GVWR, regardless of air spring, air pressure or other load assist. The springs in this kit will support approximately 40 pounds of load (combined on both springs) for each 1 PSI of pressure. The required air pressure will vary depending on the state of the original suspension. Operating the vehicle below the minimum air spring pressure will void the warranty.
5. When increasing load, always adjust air pressure to maintain normal ride height. Increase or decrease pressure from the system as necessary to attain normal ride height for optimal ride and handling. Remember that loads carried behind the axle (including tongue loads) require more leveling force (pressure) than those carried directly over the axle.
6. Always add air to springs in small quantities, checking the pressure frequently.
7. Should it become necessary to raise the vehicle by the frame, make sure the system is at minimum pressure (5 PSI) to reduce the tension on the suspension/ brake components. Use of on-board leveling systems do not require deflation or disconnection.
8. Periodically check the air spring system fasteners for tightness. Also, check the air springs for any signs of rubbing. Realign if necessary.
9. On occasion, give the air springs a hard spray with a garden hose to remove mud, sand, gravel or other debris.

TUNING THE AIR PRESSURE

Pressure determination comes down to three things — level vehicle, ride comfort and stability.

1. Level vehicle
   If the vehicle’s headlights are shining into the trees or the vehicle is leaning to one side, then it is not level (Fig. 38). Raise the air pressure to correct either of these problems and level the vehicle.

2. Ride comfort
   If the vehicle has a rough or harsh ride it may be due to either too much pressure ornot enough (Fig. 39). Try different pressures to determine the best ride comfort.

3. Stability
   Stability translates into safety and should be the priority, meaning the driver may need to sacrifice a perfectly level and comfortable ride. Stability issues include roll control, bounce, dive during braking and sponginess (Fig. 40). Tuning out these problems usually requires an increase in pressure

GUIDELINES FOR ADDING AIR

1. Start with the vehicle level or slightly above.
2. When in doubt, always add air.
3. If the front of the vehicle dives while braking, increase the pressure in the front air bags, if equipped.
4. If it is ever suspected that the air bags have bottomed out, increase the pressure (Fig. 41).
5. Adjust the pressure up and down to find the best ride.
6. If the vehicle rocks and rolls, adjust the air pressure to reduce movement.
7. It may be necessary to maintain different pressures on each side of the vehicle.

Loads such as water, fuel, and appliances will cause the vehicle to be heavier on one side (Fig. 42). As much as a 50 PSI difference is not uncommon

Troubleshooting

threaded connection into the air spring, and all fittings in the control system.
Air spring or air line leak.| The fitting seal or air line is compromised.| Check to make sure air lines are seated in connectors. Inspect fittings with soapy water. Trim hose or re-seal fitting. Ensure lines are cut straight.
The corner won’t raise or air leak develops.| Look for a kink or fold in the airline.| Replace any air line that has been kinked.

References

• SOM - State of Michigan

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