Universal Rear Fitment – Designed to work with virtually any chassis style or rear suspension setup for broad application flexibility, Improved Handling Control – Helps reduce body roll and understeer for more stable and predictable cornering performance, Fully Adjustable End Links – Features 3/8-inch rod-end joints for precise adjustment and compatibility with OEM or tubular control arms, Heavy-Duty Sway Bar Construction – Solid steel 5/8\" OD, 48-spline torsion bar is heat treated for strength and durability, Complete Mounting System – Includes bronze sway bar bushings, splined aluminum arms, and weld-on mounts for 3-inch axle tubes Speedway Universal Splined Rear Sway Bar Sku # 91664725 Mfr. Part # 91664725 Condition New Brand Speedway Motors Sold Each Details
- Solid steel .650-inch sway bar, heat treated for strength, 26-inch overall length 48 Spline
- Splined sway bar arms made from 6061-T6 aluminum, 6-3/4-inches long
- Effective sway bar rate of 176 lb/in
- Universal rear sway bar fits any chassis style or rear suspension setup
- Weld on axle tabs are designed for 3-inch axle tubes, such as the Ford 9-inch
- 3/8-inch rod-end joints for rear sway bar end links allow for precise adjustments
- Weld on chassis mounts are a generous 5-inches long and can be trimmed as needed
- Bronze anti roll bar bushings for more effective reduction in body roll
- Designed, engineered, and built right here in house at Speedway Motors
Drag Race, Road Race, or Just a Serious Street Car, A Rear Sway Bar Will Help
Adding a rear sway bar to your ride makes a serious handling improvement no matter what you’re asking your vehicle to do. Launch straight at the drag strip? Or take that road course or autocross track corner just a tick faster? What about an emergency evasive maneuver on the street? All these situations are aided by adding a rear stabilizer bar to your vehicle.
The decreased body roll and reduction in understeer that a rear sway bar brings to the table makes you wonder why they were not included from the factory. Truth be told, just about every car coming off the assembly line today has a rear stabilizer bar, but back in the day it wasn’t deemed necessary with the tire contact patch and tire construction/quality of the time. Today’s super grippy plus sized wheel and tire combinations absolutely benefit from adding a rear anti roll bar.
A Rear Sway Bar Built to Take the Punishment, On Track or Off
This isn’t some hollow tube rear stabilizer bar that will fold under pressure. Our splined rear sway bar is a generous .650-inch diameter (5/8-inch) of solid heat treated steel and rides in bronze bushings. The splined ends mount a pair of 6061-T6 aluminum arms that are 6-3/4-inches long, allowing the sway bar to be mounted above or below the axle housing’s center line for plenty of chassis mounting options. Be it a unibody or full frame chassis, our 5-inch long mounting tabs, positioned at 20-1/2-inches apart, provide ample positioning room for access to the sway bar if you wish to change the bar’s diameter to increase or decrease effective rate. The setup, as shipped, is rated at 176 lb/in of rate.
Weld-on axle tabs are designed for common 3-inch axle tube diameter, such as the popular 9-inch Ford housing, but can be ground/modified to fit any axle tube diameter. The included 3/8-inch rod ends act as rear sway bar end links and provide a precise solution for sway bar adjustment to ensure the anti roll bar ends are parallel to the ground and not binding at ride height. The rod end links also provide a more direct and faster sway bar input to the rear suspension than typical rubber or urethane rear sway bar end links. The overall anti roll bar length is 26-inches. Depending upon vehicle and installation location frame rail access may need to be considered for sway bar removal or make the sway bar mount a bolt in with some light fabrication work.
Our universal splined rear sway bar is an excellent value that requires a little effort to install, but the net results of how your vehicle will handle after installation will have you wondering why you didn’t install a rear bar sooner!
Specs Overall Width 26" Position Rear Diameter .650" Bushing Material Bronze Material Type Steel Finish Natural Color Natural Rear Sway Bar Type Modular Rear Sway Bar Diameter .650" MFG. Part # 91664725 Sold in Quantity Each Reviews Would buy again Rated by Terry H. on March 02, 2025
Summary: Good universal anti roll bar
Yes, I recommend this product.
Awesome Sway Bar Rated by Hacksaw. on December 08, 2024
Summary: Installed on an older TCI chassis in the rear. Nice welding. Easy assembly. Beautiful welding and CNC. Haven't driven yet. I need another year to finish the car.
Yes, I recommend this product.
Worth the time n money Rated by Cap on August 17, 2024
Summary: Put it in my Sonoma did what I wanted it to do fit nice in frame it's a good build part
Yes, I recommend this product.
Great Product Rated by Carguy on November 16, 2023
Summary: Use on a 1934 Ford 3w coupe. Building it to enter in the NSRA QC nationals next August 16th & 17th.
Yes, I recommend this product.
I would buy this product agian Rated by Carl on May 11, 2023
Summary: Excellent product, great value
Yes, I recommend this product.
Related Items / Suggested Parts DECO Magnetic Angle Finder Gauge Tool, 4.14 In. Diameter Tech Support We\'re here to help before and after your purchase. If you have a question or need assistance with one of our products, please contact us through Messaging and a knowledgeable Speedway Motors team member will be happy to help. About Speedway Motors is America’s Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 74 years. Founded in 1952 by “Speedy” Bill Smith – a racer and street rodder himself – Speedway has grown from a one-man operation to become the world’s largest manufacturer, distributor and retailer of street rod and racing products. Our industry-leading fast delivery is the result of same-day shipping from our state-of-the-art, centrally located 500,000 sq. ft. headquarters. Speedway’s size offers customers unmatched product selection and low pricing, while our excellent technical support and customer service have made us a recognized leader in the rodding and racing industries.
