QA1 Trailing Arms, Lower 79-04 Mustang & 1979-86 Capri - 5221

QA1 Trailing Arms, Lower 79-04 Mustang & 1979-86 Capri - 5221

All upper tubular and lower boxed trailing arms use polyurethane bushings on both ends, while upper adjustable and lower tubular trailing arms use a spherical ball or rod end assembly on the chassis end to eliminate bushing bind, allowing the suspension to move smoother for better control. This keeps the tires planted firmly on the ground for improved traction and a more predictable, better handling car. Trailing.

Key Features

• Brand: QA1
• Part Number: 5221
• Product Type: Suspension Trailing Arm
• Fitment: 1979-2004, 1979-1986 Ford Mustang
• Built for improved handling, stance, suspension control, and reliable performance
• Designed for serious street, performance, drag, pro-touring, and custom builds

Fitment & Installation Notes

1979-2004, 1979-1986 Ford Mustang Professional installation is recommended when suspension geometry, alignment, ride height, welding, or fabrication may be involved.

Emissions & Compliance

Catalog compliance data lists CARB:N and/or EPA:N. Confirm state and local requirements before street use.

Why Buy This Part

Choose QA1 for proven performance parts engineered for enthusiasts who care about fitment, quality, and real-world results.