QA1 trailing arm hardware kit replaces worn factory rear mounting bolts on Fox Body and SN95 Mustang chassis.
This QA1 hardware kit replaces the factory rear trailing arm mounting bolts, washers, and nuts on Mustang and Capri chassis. Fresh hardware restores proper clamping force at the trailing arm mounts and is a low-cost companion purchase when installing new trailing arms or servicing the rear suspension. QA1 part number 5216 is manufactured to meet or exceed OE specifications.
Key Features
- Replaces factory rear trailing arm mounting hardware
- Includes 4 new bolts, A/N washers, and nylock nuts
- Made in the USA
- Restores proper clamping force at the trailing arm mounts
- QA1 part 5216 ships ready to install with no additional machining required
- Part 5216 is manufactured under QA1’s quality control standards in the USA
- Reference part 5216 when ordering matching components or replacement hardware
- QA1 5216 is backed by the manufacturer’s standard warranty
- Part 5216 uses QA1’s standard finish and corrosion protection process
Fitment
| Year Range | Make | Model | Notes |
|---|---|---|---|
| 1979-1981 | Ford | Mustang Base | – |
| 1979-1981 | Ford | Mustang Ghia | – |
| 1981 | Ford | Mustang Cobra | – |
| 1982-1983 | Ford | Mustang GL | – |
| 1982-1983 | Ford | Mustang GLX | – |
| 1982-2004 | Ford | Mustang GT | – |
| 1982-1984 | Ford | Mustang L | – |
| 1983 | Ford | Mustang Turbo GT | – |
| 1984 | Ford | Mustang GT-350 20th Anniversary | – |
| 1984-1993 | Ford | Mustang LX | – |
| 1984-1986 | Ford | Mustang SVO | – |
| 1993-1999 | Ford | Mustang SVT Cobra | – |
| 1993 | Ford | Mustang SVT Cobra R | – |
| 1994-2004 | Ford | Mustang Base | – |
| 1995 | Ford | Mustang GTS | – |
| 1995 | Ford | Mustang SVT Cobra R | – |
| 2000 | Ford | Mustang SVT Cobra R | – |
| 2001 | Ford | Mustang GT Bullitt | – |
| 2001 | Ford | Mustang SVT Cobra | – |
| 2003-2004 | Ford | Mustang Mach 1 | – |
| 2003-2004 | Ford | Mustang SVT Cobra | – |
| 2003 | Ford | Mustang SVT Cobra 10th Anniversary | – |
Specifications
| Detail | Value |
|---|---|
| MPN | 5216 |
| Contents | 4 bolts, A/N washers, nylock nuts |
| Position | Rear Trailing Arm |
| Made In | USA |
What’s Included
- 4 bolts
- A/N washers
- Nylock nuts
About QA1
QA1 has manufactured precision suspension and chassis components in the United States since 1969, supplying racers and performance enthusiasts with rebuildable ball joints, control arms, sway bars, trailing arms, and chassis stiffening products engineered for consistent handling under load.
Related Parts
- QA1 79-04 Ford Mustang/79-86 Mercury Capri Lower Boxed Trailing Arms
- QA1 70-81 GM F-Body/73-77 A-Body/75-79 X-Body/78-96 B-Body Pro-Touring Upper Control Arm Kit – Front
- QA1 79-04 Ford Mustang Upper Adjustable Trailing Arms
- QA1 68-72 GM A-Body Trailing Arms Upper Non-Adjustable Tubular Trailing Arms
FAQ
Will this fit my vehicle exactly as listed
Check the fitment table above for the exact years, make, and model this part covers. Chassis and suspension parts often differ by body style within the same model line, so confirm your specific submodel and factory suspension type before ordering.
What is included in the box
This listing includes the component shown in the title. Mounting hardware is included only when stated in the specifications table above. Some installations require separate spring adapters or companion parts noted in the specifications.
Do I need any special tools to install this
Standard hand tools, a floor jack, and jack stands cover most installations. A spring compressor and ball joint separator are recommended for control arm and ball joint work, and a torque wrench is required to bring fasteners to spec.
Is this a direct bolt-on replacement
Yes, this part is engineered to bolt into the factory mounting locations on the listed applications. No cutting, drilling, or welding is required unless specifically noted.
Can I install this myself or do I need a professional
Most owners with intermediate mechanical skills and a lift or jack stands can complete this installation using common tools. If you are not experienced with suspension or chassis work, a certified shop is recommended.
Does this work with my stock suspension components
Compatibility with factory or aftermarket springs, shocks, and companion parts depends on the specific kit. Review the specifications table above for any required companion parts before ordering.
Does this come with a warranty
This part is covered by the manufacturer’s standard warranty against defects in materials and workmanship. Retain your receipt as proof of purchase.
Will this affect my vehicle’s ride height or alignment
Chassis and suspension components can change ride height, caster, or camber depending on design. Have your alignment checked after installation to keep tire wear and handling within spec.
Installation Instructions
- Raise and support the vehicle by the frame and support the rear axle
- Remove the old trailing arm mounting bolts and nuts one side at a time
- Install the new QA1 bolts, washers, and nylock nuts at the frame and axle mounts
- Torque all fasteners to the manufacturer’s specification
- Repeat on the opposite side and recheck torque after the first drive
