May 20, 2024

In this article we are going to go through a complete guide to setting up your new Ride Shocks on a 2003-2024 Toyota 4Runner.

Disclaimer: These instructions/measurements are in reference to Ride Shocks only and cannot be used to adjust other manufacturers shocks.

Front Suspension – Measuring Ride Height

Please note: Making adjustments to your coilovers should be done by an experienced mechanic. AccuTune Offroad is not responsible for any damages to you or your shocks. When making adjustments, be sure to remove the coil-over from the vehicle and use a spring compressor to remove tension. Once the tension is removed, you can adjust the spanner wrench.

Before: If you have not installed your coilovers yet, now is a good time to measure your stock ride height. You can compare this later on to see what your actual lift height is. Measuring current ride height can be done a few different ways, so choose the method that works best for you. First, you will need to pick the points of where to measure from. Examples of measurement locations would be: surface of the ground to center of differential skid plate or center of your wheel to the fender.

Front Ride Height

Getting the correct ride height is the first step in setting up your suspension. Pre-load is the initial (pre) tension (load) on your springs before carrying the weight of the vehicle. Each .25” of adjustment you make on the pre-load ring translates to approximately .50” of ride height change.

  1. Install shocks. With the vehicle on level ground, ballpark toe setting if necessary, settle suspension (drive back and forth 10 feet).
  2. Measure from the top hat to the lower shock bolt.
  3. Record height measurement.
  4. Adjust pre-load with shocks removed from vehicle and using a spring compressor.
  5. Repeat step 1 and re-check height when complete.
  6. Repeat steps above as necessary until ride height is achieved.
  7. Do not adjust pre-load with shocks installed on the vehicle.

Max Thread Length Above Pre-load Ring

Refer to the chart to correctly find the maximum.

• Never adjust pre-load with shocks on the vehicle.
• Use provided pre-load adjuster tool.
• DO NOT ADD additional pre-load past the max listed for your spring.
• Too much thread showing can cause coil bind, which will damage the spring and shock.

Too Much of a Good Thing. Don’t Over Do It!

Of course the main objective in adding pre-load is to increase the lift of the vehicle, but there can be a point where you added too much, even if you are still in range of the max exposed threads measurement.

The key is to make sure you still have sufficient down travel remaining when at ride height. Too little and you will run into handling issues and potentially damage suspension components.

Springs work in both extension and compression, so too much pre-load makes the shocks too harsh on compression and can lead to a bumpy ride. We look at suspension as a complete package and every piece of it has a purpose, as every component needs to work together in harmony.

Having too much pre-load could actually be a sign that you need to move up to the next available spring rate.

So after everything is accounted for, it is best to find that happy medium between ride height and ride quality.

Rear Suspension – Measuring Ride Height

Rear Ride Height

Setting rear ride height is something you have very little control over. You’re mostly going to be left with the card you’re dealt with when it comes to the rear end. Just make sure you’re in the Min/Max window and you should be good.

If you do find yourself below the Min measurement, then we suggest looking into alternative coil springs to lift the rear of your 4Runner.

Another thing to note is that Ride Shocks for the rear of the 4Runner has two different lift height versions: 0-1.5″ lift and 0-2.5″ lift. Do not attempt to run more or less lift than each version is capable of, or you could damage your shocks.

Bump Stops | KDSS Drop Brackets | Extended Brake Lines

Bump Stops – Money Well Spent

For the rear suspension on your 4Runner, it’s important to have the correct length bump stops with your aftermarket shocks and coil springs or you will risk damaging your shocks. We recommend using the AccuTune Offroad Rear Bump Stop Kit to ensure your rear suspension is providing the maximum suspension travel possible.

KDSS Drop Brackets and Brake Lines with 0-2.5” Lift Options

If you are using our rear shocks with the optional 0-2.5” lift (PN: 525413589 AND 525413689) and your vehicle is equipped with a KDSS system, you need to use a KDSS Drop Bracket System in order to have the KDSS bar located in the appropriate location.

You are also going to need to use a longer brake line to meet the demands of the additional droop now available to you. If you do not use a brake line extender, you will permanently damage your brake lines. For extended brake lines, we recommend using Crown Performance +2″ brake line kit.