Detroit Speed Upper / Lower Control Arms and Spindle Kit (1964-1972 GM A-Body) - 030105DS
Transform the front suspension geometry and handling of your classic GM A-Body with the Detroit Speed 030105DS Upper / Lower Control Arm and Spindle Kit. Engineered as a complete, integrated front suspension system for 1964-1972 GM A-Body applications, this bolt-on package combines tubular upper control arms, tubular lower control arms, and Detroit Speed tall drop spindles to address the limitations of the factory suspension. The system adds positive caster, optimizes the camber curve, lowers the vehicle, and positions the stock steering arms to minimize bump steer for a more capable and predictable performance suspension.
At the heart of the system are Detroit Speed's one-piece forged 4140 alloy steel spindles. The spindles are 1.5 inches taller than stock and provide a 2 inch drop from stock ride height. The additional spindle height modifies the suspension geometry to produce negative camber gain as the suspension compresses, helping keep the tire better positioned during cornering. The stock steering arms mount in an optimized location to minimize bump steer, creating a front suspension designed to work as a complete system rather than a collection of unrelated upgrades.
The Detroit Speed tubular upper control arms provide increased strength while adding positive caster to the front suspension. They feature five-axis laser-cut tube ends and ball joint pockets for precise component fit, and each arm is TIG welded in a fixture to maintain geometric accuracy and repeatability. Delrin bushings reduce unwanted compliance compared with traditional rubber bushings, while new ball joints and a durable gloss black powder-coated finish complete the assemblies.
The tubular lower control arms use a robust design with gussets and a structural cross brace for added strength. Like the upper arms, they feature five-axis laser-cut tube ends and ball joint pockets and are fixture TIG welded for consistent geometry. The lower arms use Delrin bushings with steel housings and crush tubes and include new ball joints. They can also accommodate either a conventional coil spring or Detroit Speed's coilover conversion kit, giving builders flexibility when planning the rest of the front suspension.
The 030105DS is supplied as a comprehensive package with tubular upper and lower control arms, tall drop spindles, upper and lower control arm hardware, spindle hardware, and installation instructions. The spindle design allows the use of OEM disc brakes or aftermarket brake systems designed to fit the stock spindle. For A-Body owners looking to improve geometry, lower ride height, reduce bump steer, and upgrade the strength and precision of the front suspension in one engineered package, the 030105DS provides a complete foundation for a serious street, restomod, or Pro-Touring build.
Quick Specs
- Part Number: 030105DS
- Manufacturer: Detroit Speed
- Product Type: Upper / Lower Control Arm and Spindle Kit
- Application: 1964-1972 GM A-Body
- Position: Front
- Installation Type: Bolt-On
- Tubular Upper Control Arm Kit Included
- Tubular Lower Control Arm Kit Included
- Drop Tall Spindle Kit Included
- Spindle Construction: One-Piece Forged 4140 Alloy Steel
- Spindle Height: 1.5 Inches Taller Than Stock
- Ride Height Drop: 2 Inches from Stock Height
- Provides Additional Positive Caster
- Optimizes Camber Curve
- Produces Negative Camber Gain During Suspension Compression
- Stock Steering Arms Mount in an Optimized Location to Minimize Bump Steer
- Upper Control Arms: Tubular Construction
- Upper Control Arm Tube Ends: Five-Axis Laser Cut
- Upper Control Arm Ball Joint Pockets: Five-Axis Laser Cut
- Upper Control Arm Construction: Fixture TIG Welded
- Upper Control Arm Bushings: Delrin
- Upper Ball Joints Included
- Lower Control Arms: Tubular Construction with Gussets and Cross Brace
- Lower Control Arm Tube Ends: Five-Axis Laser Cut
- Lower Control Arm Ball Joint Pockets: Five-Axis Laser Cut
- Lower Control Arm Construction: Fixture TIG Welded
- Lower Control Arm Bushings: Delrin with Steel Housings and Crush Tubes
- Lower Ball Joints Included
- Control Arm Finish: Gloss Black Powder Coat
- Compatible with Conventional Coil Springs
- Compatible with Detroit Speed Coilover Conversion Kit
- Compatible with OEM Disc Brakes
- Compatible with Aftermarket Brakes Designed for the Stock Spindle
- Upper Control Arm Hardware Kit Included
- Lower Control Arm Hardware Kit Included
- Spindle Hardware Kit Included
- Installation Instructions Included
Features
- Complete integrated front suspension package engineered for 1964-1972 GM A-Body applications
- Combines tubular upper control arms, tubular lower control arms, and tall drop spindles into one engineered system
- 1.5 inch taller spindle geometry improves the camber curve for better suspension performance
- Provides a 2 inch drop from stock ride height
- Negative camber gain during suspension compression helps improve tire positioning through corners
- Additional positive caster contributes to improved handling characteristics
- Stock steering arms mount in an optimized location to minimize bump steer
- One-piece forged 4140 alloy steel spindles provide a strong foundation for the revised suspension geometry
- Tubular upper control arms provide increased strength over the factory design
- Five-axis laser-cut tube ends and ball joint pockets provide precise control arm construction
- Fixture TIG-welded upper and lower control arms maintain accurate and repeatable geometry
- Delrin upper control arm bushings reduce unwanted suspension compliance
- Robust tubular lower control arms incorporate gussets and a cross brace for additional strength
- Lower control arms use Delrin bushings with steel housings and crush tubes
- New upper and lower ball joints are included
- Gloss black powder-coated control arms provide durability and a clean performance appearance
- Lower control arms accommodate conventional coil springs or a Detroit Speed coilover conversion
- Spindles retain compatibility with OEM disc brakes and aftermarket brakes designed around the stock spindle
- Includes application-specific control arm and spindle hardware for a comprehensive installation package
Fitment
- 1968 Buick GS 350
- 1969 Buick GS 350
- 1968 Buick GS 400
- 1969 Buick GS 400
- 1970 Buick GS 455
- 1971 Buick GS 455
- 1972 Buick GS 455
- 1964 Buick Skylark
- 1965 Buick Skylark
- 1966 Buick Skylark
- 1967 Buick Skylark
- 1968 Buick Skylark
- 1969 Buick Skylark
- 1970 Buick Skylark
- 1971 Buick Skylark
- 1972 Buick Skylark
- 1964 Chevrolet Chevelle
- 1965 Chevrolet Chevelle
- 1966 Chevrolet Chevelle
- 1967 Chevrolet Chevelle
- 1968 Chevrolet Chevelle
- 1969 Chevrolet Chevelle
- 1970 Chevrolet Chevelle
- 1971 Chevrolet Chevelle
- 1972 Chevrolet Chevelle
- 1964 Chevrolet El Camino
- 1965 Chevrolet El Camino
- 1966 Chevrolet El Camino
- 1967 Chevrolet El Camino
- 1968 Chevrolet El Camino
- 1969 Chevrolet El Camino
- 1970 Chevrolet El Camino
- 1971 Chevrolet El Camino
- 1972 Chevrolet El Camino
- 1964 Chevrolet Malibu
- 1965 Chevrolet Malibu
- 1966 Chevrolet Malibu
- 1967 Chevrolet Malibu
- 1970 Chevrolet Monte Carlo
- 1971 Chevrolet Monte Carlo
- 1972 Chevrolet Monte Carlo
- 1971 GMC Sprint
- 1972 GMC Sprint
- 1964 Oldsmobile 442
- 1965 Oldsmobile 442
- 1966 Oldsmobile 442
- 1967 Oldsmobile 442
- 1968 Oldsmobile 442
- 1969 Oldsmobile 442
- 1970 Oldsmobile 442
- 1971 Oldsmobile 442
- 1964 Oldsmobile Cutlass
- 1965 Oldsmobile Cutlass
- 1966 Oldsmobile Cutlass
- 1967 Oldsmobile Cutlass
- 1968 Oldsmobile Cutlass
- 1969 Oldsmobile Cutlass
- 1970 Oldsmobile Cutlass
- 1971 Oldsmobile Cutlass
- 1972 Oldsmobile Cutlass
- 1967 Oldsmobile Cutlass Supreme
- 1968 Oldsmobile Cutlass Supreme
- 1969 Oldsmobile Cutlass Supreme
- 1970 Oldsmobile Cutlass Supreme
- 1971 Oldsmobile Cutlass Supreme
- 1972 Oldsmobile Cutlass Supreme
- 1967 Oldsmobile Vista Cruiser
- 1968 Oldsmobile Vista Cruiser
- 1969 Oldsmobile Vista Cruiser
- 1970 Oldsmobile Vista Cruiser
- 1971 Oldsmobile Vista Cruiser
- 1972 Oldsmobile Vista Cruiser
- 1964 Pontiac GTO
- 1965 Pontiac GTO
- 1966 Pontiac GTO
- 1967 Pontiac GTO
- 1968 Pontiac GTO
- 1969 Pontiac GTO
- 1970 Pontiac GTO
- 1971 Pontiac GTO
- 1972 Pontiac GTO
- 1964 Pontiac LeMans
- 1965 Pontiac LeMans
- 1966 Pontiac LeMans
- 1967 Pontiac LeMans
- 1968 Pontiac LeMans
- 1969 Pontiac LeMans
- 1970 Pontiac LeMans
- 1971 Pontiac LeMans
- 1972 Pontiac LeMans
- 1967 Pontiac Tempest
- 1968 Pontiac Tempest
- 1969 Pontiac Tempest
- 1970 Pontiac Tempest
FAQs
What handling benefits does the Detroit Speed 030105DS Control Arm and Spindle Kit provide?
The 1.5 inch taller spindles modify the front suspension camber curve to create negative camber gain during compression, while the system adds positive caster and positions the stock steering arms to minimize bump steer. Together, these geometry changes are designed to provide more capable and predictable front suspension performance.
Can the Detroit Speed 030105DS kit be used with stock-style brakes and conventional coil springs?
Yes. The Detroit Speed spindle allows the use of OEM disc brakes or aftermarket brake systems designed to fit the stock spindle. The tubular lower control arms can be used with conventional coil springs or Detroit Speed's coilover conversion kit.
Why Buy From Beefcake Racing?
Beefcake Racing proudly offers genuine Detroit Speed suspension and chassis components backed by competitive pricing, fast shipping, and expert technical support. Whether you're improving the handling of a classic Chevelle, GTO, Skylark, Cutlass, or another GM A-Body or building a complete Pro-Touring suspension package, our knowledgeable team can help you select the right Detroit Speed components for your performance goals.
Questions about fitment, suspension setup, or installation?
Email: sales@beefcakeracing.com
Phone: 1-855-827-7223
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
