Determine the Correct Lift Spacer

So, you’ve got a lifted truck. 

Whether you bought your lift kit to accommodate bigger tires or just for the aesthetic, you’re now coming to realize that lift kits can often compromise your vehicle’s towing and hauling capabilities. 

Maybe you opted for a lift that modifies your suspension components, or maybe you picked one that simply stacks on existing suspension components. Either way, now your truck needs some extra help to tow and haul with safety and comfort.

Universal Air Spring Spacers are designed to fill the extra space created when lifting a vehicle and create a safe platform to mount an air suspension product. 

Depending on your lift, vehicle, and air spring kit, these Air Spring Spacers may or may not be for you – these are meant to be a universal, one-size-fits-most solution.

The Universal Air Spring Spacers are designed to work with all of Air Lift’s best-selling load support product lines, including the LoadLifter 5000, LoadLifter 5000 Ultimate, LoadLifter 5000 Ultimate Plus, and LoadLifter 7500 XL, as well as air suspension systems created by other brands.

Available in three heights and in angled or straight configurations, you can be sure that Air Lift has what you need.

Now, which spacer do you need, exactly? Just follow these steps:

CAUTION – THESE ARE UNIVERSAL KITS AND MAY NOT WORK ON EVERY APPLICATION.

Air Lift company recommends to read installation manuals for the lift kit and the load assist kit to fully understand the interfaces between the two products prior to purchasing.

Before we begin, it is important to note that a 6″ lift may not require a 6″ spacer.

Do not assume that a 6” lift kit will require a 6” lift spacer. On many lift kits, the lift for the front end is higher than for the rear. In this case, the lift might be labeled as a 6”, but the rear lift may only be 4”.

Option One:

Contact the lift kit manufacturer for the height increase of the rear. Choose the spacer that is closest to the increased amount of the lift for the rear of the truck. It is preferred to mount the air spring taller — or slightly stretched — than shorter — or slightly compressed.

Option Two:

Park your unloaded truck on a flat, level surface and measure between the mounting surfaces of the upper and lower brackets (Fig. 1).

Subtract the height of the air spring at design height from the distance found above (Table 1).

Use that number to choose the lift spacer kit with the appropriate height and angle (Table 2).

Fig. 1

Determine Height of Air Spring

Air spring part no.	Number on side of air spring	Design Height
58437, 58496, 58491	5813	6″
58439, 58494	5814	5.5″
58115	5815	7″

Table 1

Lift Spacer Kit Numbers

Kit no.	Lift spacer height	Angle
52420	2″	Level
52440	4″	Level
52460	6″	Level
52445	4″	4-degree pitch
52465	6″	4-degree pitch

Table 2