Global West Suspensions is known for high-quality suspension components designed to improve handling and stability in classic cars. Part 916 is a critical part of their suspension lineup, specifically engineered for certain GM A-body vehicles. This article covers everything you need to know about Global West Suspensions Part 916: what it is, which cars it fits, its performance advantages, installation notes, and how to decide if it's the right upgrade for your classic ride.
What Is Global West Suspensions Part 916?
Global West Suspensions Part 916 is a tubular front lower control arm designed for 1964-1972 GM A-body vehicles. Unlike the original stamped steel control arms, Part 916 is constructed from heavy-duty round tubing and uses high-strength ball joints and bushings. The design reduces unsprung weight, improves structural rigidity, and allows for precise alignment settings. This part is often purchased as part of a full front suspension upgrade or as a direct replacement for worn-out factory arms.
Key Features of Part 916
- Material & Construction: Made from 1.250-inch O.D. DOM seamless steel tubing with welded reinforcement plates. The arms are powder-coated for corrosion resistance.
- Bushings: Comes with Global West's own Del-A-Lum bushings, which feature a high-density urethane compound with a Teflon liner for low friction and long life.
- Ball Joint: Uses a heavy-duty, greaseable ball joint with a hardened steel stud.
- Weight: Approximately 5-6 pounds lighter per side than stock control arms, reducing unsprung weight.
- Alignment Adjustability: Includes a set of adjustable caster/camber shims (sold separately or included depending on kit).
Fitment: Which Cars Use Part 916?
Part 916 is designed for the following GM A-body models from 1964 to 1972:
- Chevrolet Chevelle (1964-1972)
- Chevrolet Malibu (1964-1972)
- Pontiac GTO (1964-1972)
- Oldsmobile Cutlass / 442 (1964-1972)
- Buick Skylark / Gran Sport (1964-1972)
- Also fits some 1968-1972 GM intermediates with similar front suspension geometry.
Note: Part 916 is for the driver's side (left) lower control arm. The passenger side (right) is Part 917. Always confirm your vehicle's year and model before ordering.
Benefits of Upgrading to Part 916
Upgrading to tubular control arms offers several advantages over the original stamped steel arms, especially for performance driving or resto-mod builds.
Improved Handling and Stability
The tubular design reduces flex during hard cornering and braking. The stiffer arm keeps the alignment geometry more consistent, resulting in more predictable handling. The Del-A-Lum bushings also eliminate the deflection found in factory rubber bushings, improving steering response.
Reduced Unprung Weight
Lighter control arms mean less mass that the suspension springs and shocks have to control. This allows the tires to stay in contact with the road better, especially on uneven surfaces. The result is improved grip and ride quality.
Easier Alignment Adjustments
When combined with adjustable camber/caster shims (available separately), Part 916 allows for a wide range of alignment options to suit your driving style—whether you want aggressive cornering or a more street-friendly setup.
Long-Term Durability
The powder-coated finish resists rust and corrosion. The Del-A-Lum bushings are not only durable but also reduce squeaks and maintenance. The ball joint is greaseable, extending its service life.
Installation Considerations for Part 916
Installing tubular control arms is a moderately difficult job that requires basic mechanical skills and proper tools. Here’s what to expect.
Necessary Tools and Parts
- Floor jack and jack stands
- Socket set and wrenches
- Ball joint separator or pickle fork
- Torque wrench
- Spring compressor (if removing springs from the coilover or stock spring perches)
- Optional: alignment shims (Part 916 does not come with them unless you order a kit)
Steps Overview
- Safety First: Securely lift the vehicle and support the frame with jack stands. Remove the wheel and tire.
- Disconnect Sway Bar and Brake Line: If your vehicle has a sway bar, disconnect the end link. Also, unbolt the brake line from the control arm if necessary.
- Remove Spring: Compress the coil spring using a spring compressor and remove it. On vehicles with stock springs, you may need to unbolt the lower spring seat.
- Remove Old Control Arm: Unbolt the ball joint from the steering knuckle. Then remove the two bolts securing the control arm to the frame. You may need to pry it loose.
- Install New Control Arm: Position the new tubular arm onto the frame mounts. Insert the pivot bolts and tighten to manufacturer torque specifications. Reattach the ball joint to the knuckle.
- Reinstall Spring, Sway Bar, and Brake Line: Ensure the spring seats properly. Use a torque wrench for all fasteners.
- Alignment Required: After installation, a professional alignment is mandatory to set caster, camber, and toe.
Tip: Use anti-seize compound on bolts that will need future adjustment. Global West recommends using their Del-A-Lum bushing grease during installation.
Common Installation Challenges
- Binding Bushings: If the Del-A-Lum bushings are not greased properly, they may bind. Follow the included instructions for pre-loading the bushings.
- Ball Joint Clearance: On some vehicles, the tie rod end may contact the control arm. Global West provides a clearance cutout in the arm, but check fitment.
- Spring Seat: Some aftermarket springs may not sit perfectly in the new arm. Use a spring isolator or adjust the spring compressor accordingly.
Comparing Part 916 to Other Control Arms
Global West Suspensions Part 916 is a premium choice, but other options exist. Here's how it stacks up against common alternatives.
vs. Factory Replacement Arms
- Cost: Part 916 is more expensive (typically $200-$300 per arm) than a stock steel arm ($50-$100).
- Performance: The tubular arm offers better rigidity, lighter weight, and improved alignment. Factory arms are acceptable for normal driving but flex under stress.
- Durability: Stock rubber bushings wear out within 50,000-70,000 miles; Del-A-Lum bushings last significantly longer.
vs. Other Tubular Arms (e.g., QA1, Hotchkis, UMI)
- Bushing Design: Global West’s Del-A-Lum bushings are unique—they combine the low friction of a Teflon-lined bushing with the noise isolation of urethane. Other brands often use standard urethane or spherical bearings (noisier).
- Fitment Precision: Global West is known for excellent fitment on GM A-bodies, with very tight tolerances. Some cheaper arms may require filing or shimming.
- Price Point: Part 916 is mid-to-high in price. You get quality, but if budget is tight, consider arms from other reputable brands.
Decision Factors
Choose Part 916 if you:
- Want the best bushing technology for ride comfort and performance.
- Have a 1964-72 GM A-body and want a direct bolt-on part with minimal hassle.
- Plan to do track days or spirited driving.
Consider alternatives if you:
- Need a lower cost solution for a daily driver.
- Are building a full track car that can tolerate more noise from spherical bearings.
- Have a non-A-body or later model GM car (Part 916 won't fit).
Practical Recommendation: Should You Buy Global West Suspensions Part 916?
If you own a 1964-1972 GM A-body and are serious about improving handling without sacrificing ride quality, Global West Suspensions Part 916 is one of the best investments you can make. The Del-A-Lum bushings provide almost no deflection, yet remain quiet and compliant. The tubular construction cuts weight and adds strength. Installation is straightforward for a DIY enthusiast, though a professional alignment is a must.
For street-driven classics that see occasional highway miles or autocross events, this part strikes an excellent balance. It is particularly recommended if you pair it with matching sway bars and shocks from Global West or other performance brands. While the price is higher than economy arms, the engineering and materials justify the cost. If your goal is to improve cornering and steering feel, Part 916 will not disappoint.
Buying tip: Always confirm that you need Part 916 (driver side) and gather alignment shims before installation. Many enthusiasts order a pair (916 and 917) along with an alignment kit to get the most out of the upgrade.