Specifications
- Brand
- UMI Performance
- Part #
- 3045-275-B
- UPC
- 3045-275-B

UMI Performance 78-88 GM G-Body 1-3/8in Tubular Rear Drag Sway Bar Bolt-on
$576.63
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UMI Performance 78-88 GM G-Body 1-3/8in Tubular Rear Drag Sway Bar Bolt-on. Helps your hot rod launch flat and straight.
Key Features
- Fits 1978-1988 GM G-Body vehicles.
- Features a 1-3/8 inch diameter tubular steel construction for strength and light weight.
- Offers three adjustable rates for street/strip, drag radial, or slick tire applications.
- Includes a CNC machined clamping system that fits 2.75, 3, and 3.25 inch axle tube diameters.
- Designed to clear a wide range of rear ends, including factory and common aftermarket units.
- Features double shear chassis mounts with a reinforcement plate for load distribution.
⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more
Product Details
Starting with a 1-3/8 inch diameter tubular steel construction, this rear drag sway bar from UMI Performance is built for serious traction. It’s designed to help your GM G-Body launch off the line flat and straight, no matter how much power you're putting down. This bar offers three distinct rates, allowing you to tune it for street/strip use, running drag radials, or even full slick tires. It's a well-built piece designed to handle the stresses of hard launches.
UMI has engineered this sway bar with a CNC machined clamping system that adapts to a variety of differential housing diameters, including 2.75, 3, and 3.25 inches. This means it can fit factory OEM 7.5 and GN 8.5 rears, as well as common aftermarket units like 12-bolt, 9-inch, M9, and S60 rears. While it's designed as a 100% bolt-in installation, UMI strongly recommends welding for added security, especially given the forces involved in drag racing. The chassis mounts are double shear and use four 3/8 inch fasteners, with an exclusive reinforcement plate to help distribute the load. Drilling through the crossmember is required, but a template and instructions are included to guide you through the process. The integrated hex adjuster allows for on-car pre-loading, which is key for ensuring your car leaves the starting line straight.
This sway bar is available in a durable red or black powder coat finish and is manufactured in the USA. It's a solid option for anyone looking to improve their G-Body's launch stability. You'll also save about 8-10 pounds compared to some other options without sacrificing roll resistance. UMI includes heavy-duty CrMo u-bolts and spherical rod ends with Teflon races for smooth, reliable operation.
Specifications
- Brand
- UMI Performance
- Manufacturer Part #
- 3045-275-B
- UPC
- 3045-275-B
Frequently Asked Questions
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UMI Performance 78-88 GM G-Body 1-3/8in Tubular Rear Drag Sway Bar Bolt-on
