Maximum Motorsports Sport Box (SB-1) - 1987-1989 Ford Mustang Hardtop
Upgrade the handling, steering response, and chassis rigidity of your 1987-1989 Ford Mustang Hardtop with the Maximum Motorsports Sport Box. Designed specifically for street-driven Mustangs, this complete suspension package combines lowering springs, matched struts and shocks, chassis reinforcement components, and steering upgrades to improve performance while maintaining comfortable ride quality.
The Sport Box includes H&R Sport springs, Koni STR.T struts and shocks, Maximum Motorsports caster/camber plates, a Panhard bar, and multiple chassis braces. Together, these components improve cornering grip, stability, and steering precision without sacrificing the ride quality expected from a street-oriented suspension.
Features
- Complete suspension and chassis upgrade package for 1987-1989 Mustang Hardtop models
- Designed for street-driven Mustangs rather than vehicles used in driving events
- H&R Sport springs lower the vehicle for improved handling
- MM caster/camber plates allow alignment adjustments within specification
- Matched Koni STR.T struts and shocks improve suspension performance while maintaining good ride quality
- Urethane spring isolators replace aging factory rubber isolators during spring installation
- MM shorter pinion snubber increases available rear suspension travel on solid axle Mustangs
- MM Panhard Bar improves cornering grip and rear suspension stability
- Full-length subframe connectors increase chassis rigidity for improved handling and ride quality
- MM strut tower brace and 4-point K-member brace provide additional chassis reinforcement
- Urethane steering rack bushings reduce compliance for improved steering response
- Front swaybar bushings and end links included
- Package can be customized with assistance from Maximum Motorsports Tech Associates
Package Includes
- H&R Sport Springs
- Maximum Motorsports Caster/Camber Plates
- Koni STR.T Front Struts
- Koni STR.T Rear Shocks
- Urethane Spring Isolators
- Maximum Motorsports Pinion Snubber (Solid Axle Mustangs)
- Maximum Motorsports Panhard Bar
- Maximum Motorsports Full-Length Subframe Connectors
- Maximum Motorsports Strut Tower Brace
- Maximum Motorsports 4-Point K-Member Brace
- Urethane Steering Rack Bushings
- Front Swaybar Bushings
- Front Swaybar End Links
Street-Oriented Suspension Performance
The Maximum Motorsports Sport Box is engineered to improve suspension performance in a complete, coordinated package. H&R Sport springs lower the Mustang, while the matched Koni STR.T struts and shocks provide controlled suspension movement and comfortable street ride quality.
Maximum Motorsports caster/camber plates allow the front alignment to be adjusted within specification. Urethane spring isolators replace the original rubber components during spring installation, while the shorter pinion snubber provides additional suspension travel.
The Panhard bar improves cornering grip and rear suspension stability. Full-length subframe connectors, the strut tower brace, and the 4-point K-member brace increase chassis rigidity, benefiting both handling and ride quality.
Urethane steering rack bushings reduce unwanted movement in the steering system, improving steering response and precision.
Fitment
- 1987 Ford Mustang Hardtop
- 1988 Ford Mustang Hardtop
- 1989 Ford Mustang Hardtop
Important Fitment and Ordering Notes
Front Swaybar Diameter: You must specify your Mustang's front swaybar diameter when ordering to ensure the correct bushings are supplied.
1979-1986 Mustang Applications: A customized version of this Sport Box may be available for 1979-1986 Mustangs that have been upgraded with 1987 or newer spindles and rear lower shock mounts. Contact Maximum Motorsports Tech Associates by phone or email for assistance before ordering.
Custom Package Options: Maximum Motorsports can customize the Sport Box to suit your suspension preferences. Contact their Tech Associates for help configuring a package for your Mustang.
Intended Use: This package is designed for street-driven Mustangs and is not intended for vehicles participating in driving events.
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