How To Install Mustang Rear Sway Bar (15-18)

Posted 12/8/2017 by Tyler Rodriquez

Follow along as LMR walks you through step by step on how to install an aftermarket 2015-2018 Mustang rear sway bar.

FOLLOW: 2015 mustang , mustang , installation , steeda

How To Remove 2018 Mustang GT Engine Cover

Tools Needed

  • Socket Wrench Set
  • Flat Head Screwdriver

2018 Mustang GT Engine Cover Removal Instructions

  1. Open your hood and pop off the harness clip stud cover from the passenger strut tower brace stud

  2. How To Remove 2018 Mustang GT Engine Cover

  3. If equipped, loosen and remove the 4 15mm nuts holding the strut tower brace on and remove the brace from the car.

  4. How To Remove 2018 Mustang GT Engine Cover

  5. Using a flat head screwdriver, remove the two plastic access covers to expose the retaining Nuts.

  6. How To Remove 2018 Mustang GT Engine Cover

  7. Loosen and remove the two 10mm retaining nuts securing the engine cover to the engine.

  8. How To Remove 2018 Mustang GT Engine Cover

  9. Lift up on the back of the cover to completely remove it from the intake manifold.

  10. How To Remove 2018 Mustang GT Engine Cover
  11. Reverse the steps for reinstalling if you choose to do so.

  12. How To Remove 2018 Mustang GT Engine Cover

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2015-18 Mustang Rear Sway Bars

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About the Video

2015-2018 Mustang Steeda Rear Sway Bar - Review & Install

Check out our YouTube channel for even more tech tips, installation videos, how-tos, and more. The best place to go for anything Mustang related!

Published on 2017-12-04
Tighten Up Your Suspension.
This 2015-2018 Mustang Steeda rear sway bar is a great way to have your S550 cornering, handling, and feeling better than ever! This billet machined sway bar replaces your factory bar for a stronger, more reliable setup. It features press-fit welded billet ends that are far stronger than stamped ends. This 2015-2018 Mustang sway bar has been designed, manufactured, and tested by Steeda here in the USA.

Application: 2015-2018 Mustang Ecoboost, V6, and GT

Bushing Lubrication Note:
The suspension bushings included with this part can only be lubricated with PTFE grease, also referred to as "Marine Grease". PTFE grease is a very sticky, opaque grease that is water proof and will not degrade the bushing material. If lubed properly at installation, these bushings will not need to be lubricated again. Use of any other grease on these bushings will cause the bushing to fail and any bushing warranty to be voided.

Rear Sway Bar:
Item # ST-5551016
MPN # 555-1016
How’s it going guys? Landan here with! This video will cover my product breakdown and installation on Steeda’s rear sway bar fitting the 2015 to 2018 Mustangs.

Here at Late Model Restoration, taking corners at speed is by far one of our favorite things to do during our spare time. Because of that, stronger aftermarket sway bars are usually one of the first upgrades we do to our cars.

For our 2018 Mustang GT shop car we went with Steeda’s aftermarket rear sway bar for several reasons. For one, Steeda’s quality and craftsmanship is second to none, and the fit and finish is always spot on.

Now, this front sway bar from Steeda is going to be larger than the factory unit measuring in at 28.5mm in diameter which also equates to an inch and an eighth. This will allow for reduced body roll, improved handling, and more stability when cornering.

Steeda designs and manufacturers each sway bar in-house from the highest quality materials. This sway bar features billet steel ends versus the coined ends found on other offerings.

What does this mean? This means that the sway bar ends are machined from billet steel round stock on a multi-axis CNC lathe, and then go through hundreds of computer simulations to ensure the ultimate in strength and performance.

This sway bar is designed to fit 2015 to 2018 V6, EcoBoost and GT Mustangs. In the box will be a rear sway bar, poly urethane bushings, bushing brackets, and brake line retaining brackets. The factory retaining bolts will be reused. This sway bar sold by itself or in a kit with Steeda’s front sway bar.

To get things started, support the car via a lift or jack stands.

Remove both rear wheels.

Remove the 10mm retaining bolt securing the brake line to the bracket.

Do the same for the other side.

To remove the sway bar end link from the bracket, use an 18mm socket to break the nut loose.

Then, utilize an 18mm ratcheting wrench and 6mm Allen socket to finish removing the nut; followed by the brake line bracket.

Again, do this for both sides.

Remove the four 13mm retaining bolts securing the sway bar brackets to the IRS cradle.

Make sure the end links are removed from the sway bar and then remove the sway bar from the car.

Before installing the Steeda sway bar into the car, liberally lubricate the inside of the two provided bushings with the provided grease.

Position them over the sway bar and on the outside of the bushing stop.

Lubricate the inside of each provided bracket.

Apply a small amount of grease to the IRS cradle where the bushing will make contact.

Taking a closer look at the attachment points on the sway bar ends; you’ll find three holes to choose from.

The hole closest to the front of the car will provide the softest setting.

Each hole leading back towards the bar itself will net a firmer setting; with the hole closest to the rear of the car resulting in the stiffest setting.

Position the sway bar into place and let it sit on top of the exhaust.

Place each bracket over the bushings and then loosely tighten the factory hardware.

Because our car will see several open track events, I’m installing the end link in the middle hole on the sway bar end.

This will set the car up with a semi-aggressive stiffness.

Once the end link is in position, place one of the provided brake line brackets over the stud.

Rethread the nut and then torque to 65 lb-ft.

Make sure the brake line bracket is nice and even.

Slide the factory 10mm retaining bolt through the brake line and bracket.

Use the provided nut to secure the bolt.

Do this for the other end link and make sure it’s the same hole as the side you just did.

Finally, torque the four sway bar bracket retaining bolts to 35 to 40 lb-ft.

Reinstall the rear wheels and then double check your work.

Get the car on the ground, take it for a test drive, and then you’re all finished.

Alright guys, I would recommend the assistance from a buddy when installing this front sway bar. It isn’t difficult by any means, but you will need an extra set of hands to get the job done.

All in all here fellas, this a great sway bar for daily driven Mustangs and even better for those of you that auto cross or road race your car.

To see more industry leading products from Steeda, be sure and subscribe to our YouTube channel. This Steeda front sway bar is currently available from the real Mustang enthusiasts,!