Product Summary

Universal Fit, 26" Overall Width, Rear Position, Steel

  • Universal application for any chassis or suspension type
  • Reduces body roll and understeer
  • Adjustable end links for fine tuning, works with OEM and tubular control arms
  • 5/8" OD 48 splined torsion bar
  • Bronze sway bar mount bushings
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Key Specs

PositionRear
Diameter.650"
Bushing MaterialBronze
Material TypeSteel
FinishNatural
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Need To Know

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Speedway Motors 91664725 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!

Speedway Motors 91664725 Specifications

KEY SPECS
MFG. Part #91664725
BrandSpeedway Motors
PositionRear
Diameter.650"
Bushing MaterialBronze
Material TypeSteel
FinishNatural
ColorNatural
GENERAL
Overall Width26"
Rear Sway Bar TypeModular
Rear Sway Bar Diameter.650"
Sold in QuantityEach

Ratings & Reviews

5

6 Reviews

Overall Assessment

Customers lauded the product for its excellent quality and great value. Many noted the high caliber of materials and workmanship, highlighting the impressive tig welds. Users found the product practical, even when used on vintage vehicles like a 1934 Ford coupe and a '56 Chevy. Reviews accentuate its reliable performance, making it a preferred choice over 'universal' counterparts. No notable negatives were documented, solidifying the product as a trusted automotive component.

5

6 reviews

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Would buy again

5.0

a year ago

Terry H.

Alabama

Verified

Good universal anti roll bar

Would Recommend

Awesome Sway Bar

5.0

a year ago

Hacksaw.

MO

Verified

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.

Would Recommend

Worth the time n money

5.0

2 years ago

Cap

Pittston PA

Verified

Put it in my Sonoma did what I wanted it to do fit nice in frame it's a good build part

Would Recommend

Great Product

5.0

2 years ago

Carguy

Le Claire, Iowa

Verified

Use on a 1934 Ford 3w coupe. Building it to enter in the NSRA QC nationals next August 16th & 17th.

Would Recommend

I would buy this product agian

5.0

3 years ago

Carl

New Zealand

Verified

Excellent product, great value

Would Recommend

Antiroll Bar

5.0

3 years ago

Liteweight

Cooks Creek Manitoba Canada

Verified

Purchased for the rear of my 56 Chevy that is mini tubbed with the leaf springs moved to inside the frame rails. This kit met and exceeded my expectations in quality of materials and workmanship. The tig welds are beautiful. I am a professional welder so......... I am always leary when it comes to parts with the term 'universal' attached to it and will usually avoid them. No worries here

Would Recommend

Showing 6 of 6 reviews

Questions & Answers

2 Questions • 2 Answers

what is the diameter and spline count of the splined ends, looks like they flare up from the 5/8 shaft?

by christopher

• 2 years ago

1 answer

Do you have different bars, with different spring rates. I see that the one that comes in the kit is 176 lbs

by Sporty1203

• 3 years ago

1 answer

2 of 2 questions shown

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