How to Adjust Coilover Suspension

Updated February 21, 2017

Coilovers are really popular nowadays, because they provide a good ride as well as height adjustability, making them very versatile. Whether you want your car set up for street or strip, there are all sorts of different ways you can set up and adjust a coilover suspension. With some simple tools, just about anybody can do this job in 30 to 45 minutes.

Measure the distance between the top of the bumper well and the ground using the tape measure. Record this number on your pen and paper for each corner of the vehicle. You will use this number as a reference for your work, so you can fine-tune your suspension.

Jack up the front of the vehicle using the jack, and secure it on the jack stands. Make sure the vehicle is secure on the stands before you crawl underneath it.

Reach inside the fenderwell above the tire and locate the two coilover adjusting nuts on the coilover assembly. The bottom nut is a locknut to keep the top on in place.

Loosen the bottom nut using the wrenches provided in the kit. You can turn this nut by hand a few times once it's initially loosed, which means you can move it wherever you need to while you adjust the upper nut.

Turn the upper nut right to tighten and lift the vehicle or left to loosen and lower the vehicle.

Tighten the bottom nut against the top nut once you have established the height that you want. Make sure the bottom nut and top nut are locked together tight using the wrenches so that you don't slide in height.

Repeat the process for the other side of the vehicle.

Lower the vehicle to the ground using the jack.

Measure the distance between the fenderwell and the ground using the tape measure. Compare this number to the previous numbers on your pen and paper. If you need to adjust higher or lower, repeat the process.

Things You'll Need

  • Tape measure
  • Pen and paper
  • Jack
  • Jack stands
  • Wrenches included in coilover kits
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About the Author

Russell Wood is a writer and photographer who attended Arizona State University. He has been building custom cars and trucks since 1994, including several cover vehicles. In 2000 Wood started a career as a writer, and since then he has dedicated his business to writing and photographing cars and trucks, as well as helping people learn more about how vehicles work.