QA1 Double-Adjustable 4-Link Kit W/ 9” Housing Mustang 1964-1966

This 4-link kit (R223-130S) enhances the suspension capabilities of your 1964-1966 Mustang.  with this premium 4-link kit. It replaces outdated leaf springs with fully adjustable triangulated 4-link system. Double-adjustable coil-overs allow independent compression and rebound tuning, helping you dial in your suspension for street cruising, autocross, or track days. The triangulated 4-link eliminates wheel hop and axle wrap for more consistent traction and smoother power delivery.

Features and Benefits:
- Complete system with 9" housing, triangulated 4-link, and coil-overs
- Double-adjustable shocks for precise compression and rebound tuning
- Triangulated design eliminates axle wrap and wheel hop
- Fabricated 9" housing rated to 800 horsepower
- Integrated drain, fill, and vent ports for easy servicing
- 31-spline 1541H alloy axles rated to 650 horsepower
- Heavy-duty 1/2" x 3" wheel studs
- 5x4.5" bolt pattern fits popular aftermarket wheels
- Big Ford Torino-style flanges for brake compatibility
- Built-in jack pad for quick lifting
- Adjustable ride height from 0-3”
- Weld-in installation with self-fixturing brackets
- Semi-gloss black powder-coated finish

Vehicle Fitment:
- 1964-1966 Mustangs