Muscle Up Performance Products

Muscle Up Performance full frame, bolt in replacement chassis are hand-crafted in our Janesville, WI shop. Each individual chassis is designed for the customer's particular needs using the finest DOM steel and tubing.

All Muscle Up Performance full frame replacement chassis are precision designed, fully jigged, mandrel bent, and welded to exacting specifications to insure the highest quality strength and product integrity.

Each frame includes body mounts and core supports for easy, do it yourself applications.

Additional features include -

• Race inspired and proven A-Frame design that allows for coil over or air ride suspension and rack and pinion steering.
• Easy bolt up for automatic and stick-shift transmission installations.
• Mounts for small or large block engines
• Mid-frame integrated brace with exhaust passageways accommodate up to 3" exhaust.

Muscle Up Performance full frame replacement chassis utilize a classic Ford 9"-inch rear end configuration - again with coil over or air ride suspension capabilities - allowing its owners to take a bad handling, primitive braking, evil steering 1960's and 1970's full frame or uni-body muscle car and give it 21st century handling and performance.

Additional facts -

• All chassis are custom built to order with a precision jig.
• Up to 200 percent stronger than original factory frame. Eliminates chassis flex and instability.
• Normal build time is 2-3 weeks from time of order.
• Stock type suspension parts, engine mounts, or rear ends will not bolt to these chassis.

• Models for both full frame and uni-body cars.

• Front frame configuration allows for tires up to 10" wide -
• Narrowed rear frame rails allow up to 14" tires
• Ford 9" rear end housing, Wilwood brake packages are available
• Can still utilize factory floor
• About 65 percent of all Muscle Up Performance full frame ready to bolt up chassis go out the door as a bare metal product that the customer installs or has a local restoration shop install for them.
• Frame/Chassis Powder Coating and Painting are available.
• Full roller with coil over or air ride suspension, performance rack and pinion steering available.

Let Muscle Up Performance and Rod Shop help you upgrade the performance of your muscle car or street rod with a full frame bolt in chassis and accessory suspension package today.