UMI Performance

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Product Specification:

SKU:UMI4034-B

MPN: 4034-B

UPC: 4034-B

Weight: 16.6 lb

Type: Sway Bars

Description

Vehicle Fitment

• 1964-1972 Buick Skylark (All trims, GM A-Body)
• 1964-1972 Buick Special / Sportwagon (GM A-Body)
• 1965-1972 Buick GS / GS 350 / GS 400 / GS 455 (GM A-Body)
• 1964-1972 Chevrolet Chevelle (All trims, GM A-Body)
• 1964-1972 Chevrolet Malibu (All trims, GM A-Body)
• 1964-1972 Chevrolet El Camino (All trims, GM A-Body)
• 1964-1972 Oldsmobile Cutlass (All trims, GM A-Body)
• 1964-1972 Oldsmobile 442 / F-85 / Vista Cruiser (GM A-Body)
• 1964-1972 Pontiac LeMans (All trims, GM A-Body)
• 1964-1972 Pontiac GTO / Tempest (GM A-Body)

Fitment Notes

• Rear sway bar designed exclusively for 1964-72 GM A-Body platform.
• Direct-bolt installation using factory mounting points.
• Not compatible with aftermarket rear axle swaps without bracket adjustments.

Features

• Solid 1" chromoly construction enhances cornering stability.
• One-piece formed design maintains consistent torsional stiffness.
• Improves rear-end grip and reduces body roll in aggressive driving.
• Durable powder-coat finish provides corrosion resistance.
• Polyurethane bushings offer sharper suspension response.
• Includes heavy-duty Grade-8 hardware for secure installation.
• Engineered for street, autocross, and drag-race performance.

Specifications

• Part Number: 4034-B
• Bar Diameter: 1.00" (25.4 mm) solid
• Material: 4140 chromoly steel
• Finish: Black powder-coat
• Position: Rear axle
• Weight: Approx. 16 lbs

Included Components

• 1x 1" solid rear sway bar
• 2x Polyurethane bushings
• 2x Mounting brackets
• 1x Grade-8 hardware set

Product Description

The UMI Performance 4034-B rear sway bar is engineered specifically for 1964-1972 GM A-Body vehicles, delivering a substantial increase in rear-end stability and handling. The solid 1" chromoly bar offers precise roll control and noticeably flatter cornering, making it a valuable upgrade for classic muscle cars driven aggressively on the street or track.

UMI's one-piece formed construction ensures consistent torsional strength, while the powder-coat finish and polyurethane bushings enhance durability and suspension feel. Designed as a direct-bolt upgrade, this sway bar integrates cleanly with factory mounting locations, providing excellent performance improvements without drivetrain modifications.