📦 1964-1972 GM A-Body Performance Front Sway Bar – 1.25″ Adjustable Splined Anti-Roll Bar
Transform the handling of your 1964-1972 GM A-Body with this heavy-duty 1.25″ adjustable front sway bar. Built from 4130 chromoly steel with a splined design, this sway bar dramatically reduces body roll, improves steering response, and enhances chassis control for street, autocross, or road racing applications.
✅ Fits 1964-72 GM A-Body (Chevelle, GTO, LeMans, 442, Cutlass, Skylark, etc.)
✅ 1.25″ Diameter, .188″ Wall Hollow Tubing – Lighter than solid bars without sacrificing strength
✅ Billet Aluminum Pillow Blocks with Delrin Bushings – Ensures maximum stability & longevity
✅ Adjustable Sway Bar Arms – Choose from two mounting positions to fine-tune handling
✅ Direct Bolt-On Fit – No modifications required, bolts directly to OEM frame mounts
✅ Works with OEM & Tubular Control Arms – Compatible with future suspension upgrades
✅ Engineered for Street, Autocross & Road Racing
⚠ Note: Requires minimum 15” wheels for clearance with 11” brakes, 16”+ for 12” brakes, and 17”+ for 13” brakes.
🔹 Key Features & Benefits
✅ High-Performance Handling Upgrade – Eliminates excessive body roll & understeer
✅ Race-Proven Chromoly Steel Construction – Built to withstand high lateral forces
✅ Adjustable Rate Sway Bar – Fine-tune stiffness with two end-link mounting points
✅ Delrin Bushings & Billet Aluminum Mounts – Ensure smooth, quiet operation & durability
✅ Compatible with Stock & Aftermarket Suspension – Works with OEM & tubular control arms
✅ Bolt-On Installation – No cutting, welding, or modifications required
✅ Precision Engineering for GM A-Body – Designed to optimize weight distribution & cornering performance
🔹 Technical Specifications
⚙️ Sway Bar Details
| Feature | Details |
|---|---|
| Vehicle Fitment | 1964-72 GM A-Body (Chevelle, GTO, LeMans, 442, Cutlass, Skylark, etc.) |
| Position | Front |
| Material | 4130 Chromoly Steel |
| Diameter | 1.25″ (OD) |
| Wall Thickness | .188″ |
| Sway Bar Rate | 375 lb/in |
| Length | 38.6″ |
| Sway Bar Arm Length | 11.75″ |
| Sway Bar Arm Material | A36 Plate Steel |
| Adjustability | Two End-Link Mounting Holes |
| Finish | Natural |
⚙️ Fitment & Compatibility
| Feature | Details |
|---|---|
| Suspension Type | Front Sway Bar |
| Mounting | Direct Bolt-On |
| Bushing Type | Delrin |
| Pillow Blocks | Billet Aluminum |
| Control Arm Compatibility | OEM & Tubular Control Arms |
🔹 What’s Included in the Kit?
✔️ (1) 1.25” Splined Chromoly Steel Sway Bar
✔️ (2) Billet Aluminum Pillow Blocks with Delrin Bushings
✔️ (2) 11.75” Adjustable Sway Bar Arms (A36 Steel)
✔️ (2) Adjustable End Links with 1/2” Rod-End Joints
✔️ Complete Hardware Kit for Bolt-On Installation
⚠ Note: Brakes, wheels, and control arms sold separately.
❓ Frequently Asked Questions (FAQ)
🔹 What vehicles will this sway bar fit?
- This front sway bar is a direct bolt-on upgrade for 1964-1972 GM A-Body vehicles, including:
- Chevrolet: Chevelle, Malibu, El Camino
- Pontiac: GTO, LeMans, Tempest
- Buick: Skylark, GS
- Oldsmobile: 442, Cutlass
🔹 What’s the benefit of upgrading to a 1.25” sway bar?
- A larger sway bar reduces body roll, enhances cornering stability, and improves chassis balance for high-performance driving.
🔹 Is this sway bar adjustable?
- Yes! The two end-link mounting holes allow you to fine-tune sway bar stiffness for different handling characteristics.
🔹 Do I need tubular control arms for this sway bar?
- No, this sway bar works with both stock and aftermarket tubular control arms.
🔹 Can I install this sway bar with my stock brakes?
- Yes! However, the minimum wheel size for clearance is 15” for 11” brakes, 16” for 12” brakes, and 17” for 13” brakes.
🔹 Does this sway bar require any modifications to install?
- No! This kit is 100% bolt-on and mounts directly to OEM frame locations with included billet pillow blocks and Delrin bushings.
🔥 Call to Action – Order Now!
Upgrade your 1964-1972 GM A-Body suspension with this adjustable 1.25” splined sway bar for improved handling, reduced body roll, and enhanced cornering stability. Whether you’re daily driving, autocrossing, or road racing, this race-proven sway bar delivers the performance you need!
🛒 Limited stock available – Order today for fast shipping! 🚀
Details
- 1.25-inch 4130 chromoly steel front sway bar 38.6-inches long with .188-inch wall thickness
- 11.75-inch long splined sway bar arms made from A36 plate steel
- Sway bar arms create 375 lb/in effective rate, adjustable via two end link mounting holes
- 1/2-inch rod-end joints used as sway bar end links to provide fine tuning
- Large diameter splined front sway bar reduces body roll and understeer
- Billet aluminum pillow blocks mount sway bar to stock frame location
- Delrin sway bar mount bushings provide enhanced sway bar stability
- Bolts in place of stock stabilizer bar to frame and to stock or tubular control arms
- No modification required to your suspension or frame assembly for installation
- Designed, engineered, and manufactured in house at Speedway Motors
Improve You’re A-Body’s Handling with A Bolt-in Front Sway Bar Upgrade
There’s an old saying that muscle cars do one thing really well, and that’s go fast in a straight line. That may have been true back in the day, but there is a huge movement the last decade or so to change that mindset. Now the going thing is muscle cars that handle. You’ve seen them at autocrosses and other events. Maybe not full on pro touring style efforts, but none the less a classic 60s or early 70s muscle car with real brakes, serious rubber, and a wicked stance.
Part of that appeal of a muscle car that handles is creating something that is the best of both worlds; a powerful muscle car that can handle and brake like a modern ride. Upgrading the suspension to handle the increased tire size and the grip that comes with those wider tires is a must. For General Motors’ intermediate A-body platform, a beefy front sway bar is an easy upgrade that will work with your Chevelle or other A-body suspension as your muscle car project build sees other suspension upgrades.
A Splined Sway Bar Built to Take the Punishment, On Track or Off
Our A-body front sway bar kit features a 38.6-inch long 4130 chromoly steel splined anti roll bar that is 1.25-inches in outside diameter. We use .188-inch wall hollow tubing to provide plenty of strength, yet reduce overall weight compared to a solid front sway bar that is typically used. Our splined sway bar kit arms are cut from A36 plate steel and are 11.75-inches long with two different mounting point options for the front sway bar links to adjust sway bar effective rate. The arms feature a 50-degree bend, keeping the arms tucked tight to the chassis for best possible tire clearance, perfect for those track warriors running extra wide front rubber for the most grip possible.
We include custom made billet aluminum pillow blocks with Delrin bushings and sway bar link hardware that allow the splined anti roll bar to bolt right into place of the stock stabilizer bar with no modifications or custom work. The front sway bar links are a robust 1/2-inch rod end design that can be used to adjust the sway bar link ends and attach to both stock and tubular front lower control arm setups, allowing our splined front anti roll bar to work with any future front suspension upgrades. Our vehicle specific pillow blocks bolt to the original sway bar frame mount location and house Delrin bushings for a simple installation.
Upgrade your 1964-1972 GM A-body front anti sway bar to our splined sway bar kit and see just how much improvement you’ll feel the next time you throw your A-body into a corner. We know it’ll put a grin on your face for sure!
Charts
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916-64721 3D Rendering (PDF)
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Installation Instructions (PDF)
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