How To Install 2015-20 Mustang SVE Coilovers | S550 Coilover Install

Adding a set of coil overs to your 2015-2020 S550 Mustang is a great way to get adjustable suspension for both performance and looks. Installation of a Mustang coil over kit can be intimidating, but we walk you through how easy the install can be! We do suggest having above average mechanical ability, but a good selection of tools and a few helping hands should work just as well, as long as you follow our steps! In this install we are beginning with the shocks, struts, and springs already off of the car. Check out the article below if you are needing these steps:

Install Steps

1. Starting with the front first and support with a lift or jack stands.



2. Go ahead and remove the lower strut mount from the fully threaded strut body and apply anti-seize to the lower part of the strut.



3. Reinstall the lower strut mount and rotate the mount until the bottom of the threaded body is 4” inside of the mount by measuring from the bottom. Doing this will establish a pre-determined height for the bump stop.



4. Run the lower collar down against the lower strut mount, but don’t tighten with a spanner wrench. You will need to leave this loose because you may need to rotate the lower mount so that it lines up with the spindle.



5. Rotate the spring perch until there is no play in the spring.



6. Run up the adjusting collar and tighten the two against each other with the spanner wrench.



7. Go ahead and do this for the other strut assembly. Please note that the driver side is marked with an “L” on the camber plate and an “R” for the passenger side.



8. Once the correct side is verified, install the strut into the car with the camber plate oriented correctly.



9. While holding the strut, finger tighten the 3 retaining nuts.



10. Before continuing, make note of the slotted upper hole in the strut. This allows for additional camber adjustment if needed.



11. Position the spindle into the strut and install the strut to spindle hardware in the factory orientation.



12. Thread on the retaining nuts and tighten them down. The factory torque specs for these are 184 lb-ft.



13. Adjust the provided sway bar end link to the same length as the factory end link. This is done by loosening the jam nuts and rotating each end link so that they mimic the factory piece.



14. Once this is done, retighten the jam nuts against the center adjuster.



15. Install the end link in the same orientation as the factory one was.



16. Thread on the retaining nuts and use a combination of a 19mm wrench and 6mm allen socket to tighten the nuts.



17. Torque the (3) strut mount retaining nuts to 14.5 lb-ft.



18. Reinstall the brake rotor and hold in place with a lug nut before repositioning the caliper over the rotor.



19. Align the bolt holes and reinstall the retaining hardware. Since we are using the Ford Performance M2300Y brake kit, this means it is for GT350 front brake calipers so the retaining bolts have a torque spec of 136 lb-ft. All other brake caliper retaining hardware will have a torque spec of 85 lb-ft.



20. Repeat these same steps for the other side.



21. Now you can head to the rear of the car and you will need to support the IRS cradle on whichever side you are working on to detach from the body.



22. While this is detached you will need to verify that the lower spring isolator is positioned correctly within the lower control arm. The upper isolator will not be re-used.



23. If needed lower the cradle and install the rear spring and perch at the same time. Make sure the lower spring pigtail is aligned with the lower isolator.



24. Jack up on the IRS cradle and reinstall the rearward 21mm bolt.



25. Followed by the frontward 21mm bolt.



26. Next is the IRS support bracket and the (2) smaller bolts.



27. Tighten the smaller 13mm cradle support bracket to body bolts to 41 lb-ft.



28. And the (2) 21mm cradle to body bolts to 129 lb-ft.



29. Like the front strut, remove the lower shock mount from the threaded body and apply anti-seize to the threads.



30. Next, we’ll set the pre-determined bump stop height for the shock. You will do this by laying the factory shock somewhere flat with the lower shock mount up against something as well. Verify that the dust boot is installed and mark the top of the bump stop.



31. Set the factory shock aside and position the new shock into place by first removing the pre-installed dust boot so that you can visibly see where the bumper stop is.



32. Since we are lowering the car we went ahead and compensated for that and adjusted the shocks so that the bump stop is approximately a ¼” shorter than the factory shock.



33. Whenever this is done run down the locking collar and snug down with a spanner wrench.



34. Reinstall the dust boot and do the same for the other shock.



35. Set the factory shock on a workbench and if equipped remove the dust cap from the upper mount. Then remove the 15mm retaining nut and separate the upper mount from the shock.



36. If applicable, use a drift and hammer to drive the small spacer off of the factory shock.



37. This spacer will be transferred to the new shock.



38. Remove the supplied nut and spacer from the new shock. Reposition the upper mount and the factory orientation onto the new shock and install the small spacer and provided nut. Torque to 22 lb-ft.



39. Position the upper shock mount underneath the small studs in the body of the car.



40. If needed compress the shock by hand and align the lower section of the shock with the bolt holes in the lower control arm. Loosely tighten all (4) of the retaining bolts first before tightening down.



41. The lower bolts torque to 35 lb-ft and upper bolts torque to 66 lb-ft.




42. If removed, reinstall the bolt securing the brake hose to the sway bar end link bracket. This bolt torques to 22 lb-ft.



43. Check over your work and do the same for the other side then you’re all done! Next you can check our SVE S550 Coilover Adjustment Guide if you are needing any assistance!