UMI Performance ABF803-1-B Stage 2 Handling Kit 1-Inch Lowering Black

The UMI Performance ABF803-1-B is a comprehensive Stage 2 suspension handling kit engineered to transform classic GM A-Body vehicles with a 1-inch drop. This complete kit delivers everything needed to fully rebuild and upgrade the suspension, giving classic muscle cars the cornering capability and ride quality of a modern performance vehicle. All UMI fabricated components are finished in a gloss black powder coat and are proudly made in the USA.

Kit Includes:

• #4031 – Tubular lower front A-arms with polyurethane bushings
• #4033-1 – Upper front A-arms with Delrin bushings and tall ball joints (adds 1/2" spindle height)
• #4035 – Heavy-duty 1-1/4" front sway bar with new bushings and end links
• #4034 – Solid 1" heat-treated rear sway bar
• #4050 – 1" lowering springs with linear spring rates (530 lb/in front, 130 lb/in rear)
• #S41030 – UMI monotube shocks, designed and tuned for optimum ride quality and performance
• #4015 – Tubular rear lower control arms with polyurethane bushings
• #4016 – Tubular rear upper control arms with polyurethane bushings
• #4028 – Tubular frame braces with hardware
• #3000 – Replacement rear end housing bushings
• #4001 – Rear control arm Grade 8 hardware kit
• #4004 – Front upper and lower Grade 8 hardware kit

Engine-Specific Ride Height Notes:

• Big Block (full weight): An additional 1/4" front drop may occur
• Small Block, Pontiac 400, or Big Block with aluminum heads/intake: Vehicle will typically sit level with this kit
• Lightweight LS engines: May require spring trimming to achieve desired ride height

Finish & Color: All UMI fabricated components in this kit are available in your choice of signature UMI Red or gloss Black powder coat. UMI springs and shocks are always supplied in black regardless of color selection.

This kit has been tested on the Hot Rod Power Tour and Good Guys Hall of Fame Tour, validating its real-world durability and performance. Whether you're building a street cruiser, drag strip car, or autocross competitor, the Stage 2 kit delivers exceptional handling upgrades without sacrificing everyday drivability.