How to use the Wheel Fitment Tool

Now that you have your Ramstead MFG Wheel Fitment Tool, lets go over how to use it!

Preparing your vehicle.

  1. Measure your ride height. Start by measuring your ride height with the vehicle on the ground. You'll want to match this height when using the tool because your hub position and alignment wouldn't be correct if you let the suspension hang in the air. We like to do this by taking a measurement from the center of the hub to the fender.
  2. Raise the vehicle and remove your wheel. After you measure for ride height, lift the vehicle in the air with a floor jack and jack stands, then remove your current wheel. Always follow the instructions within your factory service manual (FSM) for safe points to use the floor jack and jack stands.
  3. Raise your suspension to ride height. Remember the measurement you took on step 1? Hopefully you wrote it down! Use a floor jack in a safe location to lift your wheel hub back up to it's ride height position.
  4. Measure for new wheels. You are now ready to test fit for new wheels.

Using the Wheel Fitment Tool to test fit new wheels

  1. Look up the specifications of the wheels you would like to test fit. You'll need the diameter, width, and offset of the wheel.
  2. Set the diameter, width and offset on the tool to those same specifications and place it on the hub of your vehicle. Make sure the hub plate is centered on the hub.
  3. Check your results! If you have the look you want, awesome! If not, move the offset slider into the position that looks best, then check the offset indicator again to get your corrected offset so you know what offset to shop for.

Using the Wheel Fitment Tool to find the correct wheel spacer size.

If you already have your wheels and are trying to figure out what wheel spacer size to purchase for optimal fitment, we can help!

  1. Start with your current wheel specifications. We'll use a 17 x 9 +22 as an example.
  2. Place the wheel fitment tool on your hub, move the offset slider to the desired position. Check the offset indicator to get your "effective offset"
  3. Do the math! If you moved the offset to +12 for your desired fitment, you would need a 10mm spacer to make up the difference. (22 - 12 = 10) Wheel spacers can only move a wheel further out. If you used the tool and found that 17 x 9 +32 is right, then your wheels will not work.