Whiteline · New
Whiteline 05-10 Ford Mustang Ball Joints for Roll Center Correction
MPN KCA439 · Store SKU whlKCA439
Supplier stock checked 11/7/2026, 7:24:37 AM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
Whiteline Roll Center kits are designed to correct roll-center geometry using specially engineered ball-joints. The KCA439 kit has 3 adjustment settings to provide precision geometry tuning to the varying heights of lowered Mustangs. Raising the front roll-center results in a substantial increase to front roll resistance and a significant reduction in suspension compression of the outside front wheel during cornering. The result is more even weight distribution and improved tire contact ultimately improving front end grip and cornering speeds. Roll Center/Bump Steer - Correction Kit Whiteline Roll center - correction kit.
Manufacturer fitment & guides
Check KCA439 against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y