S550 / S650 Mustang Rear Spring Spacer Kit
This rear spring spacer kit is designed for S550 and S650 Mustangs and provides an easy way to adjust rear ride height without changing your springs. Each spacer mounts between the top of your rear coil spring and the factory rubber isolator, raising the vehicle by approximately 1/4", 1/2", or 3/4", depending on the option selected.
Ideal for drag racing setups that use lowered rear springs for a stiffer spring rate, this kit helps fine-tune rear suspension geometry, improve tire clearance, and assist with better alignment. It’s a simple and effective solution for achieving the stance and performance you need without compromising spring selection.
Product Highlights:
- Compatible with all S550 and S650 Mustang platforms
- Installs above rear coil springs between isolator and chassis
- Raises ride height by 1/4", 1/2", or 3/4" (selectable at checkout)
- Perfect for use with lowering drag springs
- Helps maintain tire clearance and proper alignment
A must-have for drag-focused builds where lowered springs and suspension tuning go hand in hand.
Fitment:
- 2015 Ford Mustang S550
- 2016 Ford Mustang S550
- 2017 Ford Mustang S550
- 2018 Ford Mustang S550
- 2019 Ford Mustang S550
- 2020 Ford Mustang S550
- 2021 Ford Mustang S550
- 2022 Ford Mustang S550
- 2023 Ford Mustang S550
- 2024 Ford Mustang S650
- 2025 Ford Mustang S650
Note: Most Kelltrac orders ship within 2–4 weeks. While uncommon, some orders may require up to 6–8 weeks to ship.
NOTE: Kelltrac Parts are considered Race Parts and are not eligible for ReturnCA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
