Air Lift LoadLifter 5000 Install on a Ram ProMaster Van Photo Gallery
LoadLIFTER! Add Safety and Comfort With Air Lift LoadLifter 5000 for the Ram ProMaster Van
Jim Smart –
Nov 16, 2016
Photo 1/24 | Airlift Promaster Lead
Photo 2/24 | Airlift Promaster 01 | Air Lift LoadLifter 5000 kits are Air Lift’s highest-rated air spring kits specifically engineered for hauling or towing heavy loads. Although we’re working with a Ram ProMaster van, the LoadLifter 5000 air springs are designed to fit most popular vehicles, such as ½-, ¾-, and 1-ton pickup trucks; motorhomes; commercial trucks; and a host of others. In addition, they are fully adjustable from 5 to 100 psi. LoadLifter 5000 air springs can provide up to 5,000 pounds of load-leveling capacity to support heavy loads. Remember, however, to never exceed your vehicle’s GVWR.
Photo 3/24 | Airlift Promaster 02 | At the touch of a button in a simple handheld remote, the optional Air Lift On-Board Air Compressor System enables you to inflate air springs on the fly. These add-on inflation systems are great for changes in load, weather, or road conditions. In fact, Air Lift offers wireless models as well as models that mount in the cab within the driver’s reach.
Photo 4/24 | Airlift Promaster Bolt
Photo 5/24 | Airlift Promaster 04 | Air springs are assembled as shown and bolted together using Loctite for added security. Bolts are torqued to no more than 20 ft-lb.
Photo 6/24 | Airlift Promaster 05 | This view of the LoadLifter 5000 air spring demonstrates proper assembly as this spring stacks up on the axle.
Photo 7/24 | Airlift Promaster 06 | The factory rebound bumper is removed using a large pair of pliers. As you face the chassis from underneath, turn the bumper counterclockwise and remove. Put it on the shelf for safe keeping in the event you transfer your LoadLifter 5000 to another vehicle.
Photo 8/24 | Airlift Promaster 07 | The top air spring mount is installed and torqued to 30 ft-lb. Make sure the mount is properly aligned with the framerail.
Photo 9/24 | Airlift Promaster Mount Axle
Photo 10/24 | Airlift Promaster 09 | The air spring is mounted on the axle as shown and anchored via the U-bolts provided. U-bolt nuts are torqued to 16 ft-lb.
Photo 11/24 | Airlift Promaster 10 | The air springs are secured at the top mount as shown and torqued to 20 ft-lb.
Photo 12/24 | Airlift Promaster 11 | This image shows the completed air spring installation and the Ram ProMaster rear suspension system, which is a solid axle supported by heavy-duty leaf springs and damped by gas shocks.
Photo 13/24 | Airlift Promaster Leveling System
Photo 14/24 | Airlift Promaster 13 | We’re going to install the optional air compressor load leveling system. The compressor is installed with self-drilling and tapping screws, which means you won’t need your drill index for this installation. Mustangs, Etc. has elected to install the compressor away from the wheelwells, where dust and debris can clog the air filter. Mount the compressor high enough in the frame box so that water cannot be ingested.
Photo 15/24 | Airlift Promaster Compressor Relay
Photo 16/24 | Airlift Promaster 15 | The air compressor relay and wiring harness are next. The relay is secured with self-drilling and tapping screws. It is a good idea to wrap the wiring harness with Painless Performance Power Braid if your budget permits. Electrical tape is another option. Otherwise, watch out for sharp edges that can chafe insulation and cause a short circuit.
Photo 17/24 | Airlift Promaster Air Line
Photo 18/24 | Airlift Promaster 17 | The air line from the compressor to the processor and valve assembly is secured along with the power supply. Power will come from an ignition-switched source at the fuse box on the left-hand side that’s live only when the ignition switch is on. Wiring is secured with rubber-lined Adel clamps along the right-hand framerail.
Photo 20/24 | Airlift Promaster 19 | Here are the two Schrader valves to each air spring. They are employed whether you have the air compressor or choose to manually inflate the springs. It is a good idea to have these Schrader valves in case the onboard air system becomes inoperative.
Photo 21/24 | Airlift Promaster Routing Lines
Photo 22/24 | Airlift Promaster 21 | Air Lift makes it so easy to cut air lines to proper length and plug them right into the fittings, air springs, and controller. When you’re routing air lines, make sure you have a minimum of 6 inches of clearance from any exhaust component. Lines are secured with Adel clamps as shown.
Photo 23/24 | Airlift Promaster Fuse Box
Photo 24/24 | Airlift Promaster 24 | Switched power comes from the in-dash fuse box to the left of the driver. Mustangs, Etc. chose to get power from the 30-amp headlight circuit, which is live only when the ignition switch is on. Air Lift provides a 15-amp inline fuse to protect the air compressor circuit. Ram provided this firewall pass-through grommet. We routed the power lead through the firewall to the fuse box, making this an installation nearly anyone can do in a couple of hours. Make sure all wiring is protected from chafing.