Details

• Brand:

  

  

• SKU:

  JR3Z-5586-A

• Positions: Rear Upper Upper, Left Upper, Right Upper
• Other Names:

  Coil Spring Insulator, Upper Spring Insulator, Antisqueak Rear Spring

• Description:

  This genuine Ford rear coil spring upper insulator is the molded rubber isolator pad that seats between the top of the rear coil spring and the body spring seat on the 2020-2023 Mustang independent rear suspension, cushioning the spring and preventing metal-to-metal contact. Ford catalogs it as an Antisqueak Rear Spring or Upper Spring Insulator. Its job is to dampen vibration and eliminate the squeaks, creaks, and clunks that develop as the original insulator hardens, cracks, or crushes with age and heat cycling. Drivers replacing this part are usually chasing a persistent rear-suspension squeak or knock over bumps, an uneven ride height, or a spring that has shifted in its seat. Installing a fresh insulator restores the correct spring preload and quiets the rear end. It fits 2020-2023 Mustang models across the 2.3L EcoBoost, 5.0L GT, and 5.2L applications in the rear upper position. Always inspect the mating spring seat for corrosion and confirm the spring is properly indexed before torqueing the suspension back to Ford specification so ride height and load distribution are preserved.

WARNING: California Proposition 65

×

California Proposition 65

WARNING: Cancer and reproductive harm - www.P65Warnings.ca.gov