Detroit Speed Coilover Front Conversion Kit - Double Adjustable Shocks - BBC (1968-1972 GM A-Body) - 030309-DDS
Give your big-block GM A-Body modern coilover performance and serious suspension tuning capability with the Detroit Speed 030309-DDS Front Coilover Conversion Kit. Engineered for 1968-1972 GM A-Body applications with Big Block Chevrolet engines, this direct bolt-in system brings modern coilover spring and shock technology to your classic while providing extensive ride-height adjustability. Detroit Tuned valving and double adjustable shocks give performance-focused builders the control needed to dial in suspension response while still delivering excellent ride quality on the street.
The 030309-DDS features double adjustable aluminum-body coilover shocks with two independent adjustments. With an extensive adjustment range, the shocks can be tuned around the demands of the vehicle, driver, and intended use. Compared with a fixed-valving or single adjustable setup, the double adjustable configuration provides another level of control for enthusiasts who want to fine-tune their suspension for aggressive street driving, Pro-Touring, autocross, road course use, or other performance applications.
Detroit Speed pairs the shocks with 650 pounds/inch coilover springs with a 9.5 inch free length for the Big Block Chevrolet application. The threaded coilover design provides extensive ride-height adjustability, allowing you to fine-tune front stance along with suspension setup. Thrust bearings and thrust washers are included to assist with spring adjustment, and Detroit Speed supplies its dedicated spanner tool for convenient coilover adjustments.
The 030309-DDS is engineered as a direct bolt-in front coilover conversion and includes the necessary components for installation. The package includes two Detroit Speed Tuned coilover shocks, two coilover springs, spring adjusting nuts, flat washers, rubber insulators, thrust bearings, thrust washers, mounting hardware, and the Detroit Speed spanner tool. Instead of piecing together unrelated suspension components, you get an integrated package engineered specifically for the 1968-1972 GM A-Body platform.
For a big-block Chevelle, GTO, Skylark, Cutlass, El Camino, Monte Carlo, or other compatible A-Body that needs extensive suspension adjustability without giving up street manners, the Detroit Speed 030309-DDS delivers a serious upgrade. Its BBC-specific 650 pounds/inch springs, adjustable ride height, Detroit Tuned valving, and double adjustable shocks provide the flexibility to tune the front suspension around the way your car is actually built and driven.
Quick Specs
- Part Number: 030309-DDS
- Manufacturer: Detroit Speed
- Product Type: Front Coilover Conversion Kit
- Application: 1968-1972 GM A-Body
- Engine Application: Big Block Chevrolet
- Position: Front
- Shock Type: Double Adjustable Coilover
- Shock Adjustments: 2 Independent Adjustments
- Shock Body: Aluminum
- Shock Valving: Detroit Tuned
- Extensive Shock Tuning Range
- Designed to Provide Excellent Street Ride Quality
- Spring Rate: 650 Pounds/Inch
- Spring Free Length: 9.5 Inches
- Extensive Ride-Height Adjustability
- Installation Type: Direct Bolt-In
- Detroit Speed Tuned Coilover Shocks: 2
- Coilover Springs: 2
- Coilover Spring Adjusting Nuts: 2
- Flat Washers: 4
- Rubber Insulators: 4
- 5/8-18 Upper Mounting Nylock Nut: 1
- Thrust Bearings: 2
- Thrust Washers: 4
- 3/8-24 x 1.5 Inch Hex Head Bolts: 4
- 3/8-24 Nylock Nuts: 4
- 3/8 Inch AN Washers: 4
- Detroit Speed Spanner Tool: 1
- Installation Instructions Included
- Emission Code: 4
Features
- Direct bolt-in front coilover conversion for 1968-1972 GM A-Body applications with Big Block Chevrolet engines
- Brings modern coilover spring and shock technology to the classic GM A-Body platform
- Double adjustable shocks provide two independent adjustments for extensive suspension tuning capability
- Wide adjustment range allows shock behavior to be tailored to vehicle setup, driver preference, and performance demands
- Detroit Tuned valving combines performance-focused suspension control with excellent street ride quality
- Aluminum-body coilover shock construction
- 650 pounds/inch spring rate for Big Block Chevrolet applications
- 9.5 inch spring free length
- Threaded coilover design provides extensive ride-height adjustability
- Allows front stance and suspension setup to be fine-tuned for the individual build
- Thrust bearings and thrust washers are included to assist with spring adjustment
- Rubber insulators and required mounting hardware are included
- Detroit Speed spanner tool is supplied for convenient coilover adjustment
- Complete package eliminates the need to separately source the primary conversion components
- Excellent choice for performance street, restomod, Pro-Touring, autocross, and road course GM A-Body builds
Fitment
- 1970 Buick GS
- 1971 Buick GS
- 1972 Buick GS
- 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
- 1968 Buick Skylark
- 1969 Buick Skylark
- 1970 Buick Skylark
- 1971 Buick Skylark
- 1972 Buick Skylark
- 1968 Chevrolet Chevelle
- 1969 Chevrolet Chevelle
- 1970 Chevrolet Chevelle
- 1971 Chevrolet Chevelle
- 1972 Chevrolet Chevelle
- 1968 Chevrolet El Camino
- 1969 Chevrolet El Camino
- 1970 Chevrolet El Camino
- 1971 Chevrolet El Camino
- 1972 Chevrolet El Camino
- 1970 Chevrolet Monte Carlo
- 1971 Chevrolet Monte Carlo
- 1972 Chevrolet Monte Carlo
- 1971 GMC Sprint
- 1972 GMC Sprint
- 1968 Oldsmobile 442
- 1969 Oldsmobile 442
- 1970 Oldsmobile 442
- 1971 Oldsmobile 442
- 1968 Oldsmobile Cutlass
- 1969 Oldsmobile Cutlass
- 1970 Oldsmobile Cutlass
- 1971 Oldsmobile Cutlass
- 1972 Oldsmobile Cutlass
- 1968 Oldsmobile Cutlass Supreme
- 1969 Oldsmobile Cutlass Supreme
- 1970 Oldsmobile Cutlass Supreme
- 1971 Oldsmobile Cutlass Supreme
- 1972 Oldsmobile Cutlass Supreme
- 1968 Oldsmobile Vista Cruiser
- 1969 Oldsmobile Vista Cruiser
- 1970 Oldsmobile Vista Cruiser
- 1971 Oldsmobile Vista Cruiser
- 1972 Oldsmobile Vista Cruiser
- 1968 Pontiac GTO
- 1969 Pontiac GTO
- 1970 Pontiac GTO
- 1971 Pontiac GTO
- 1972 Pontiac GTO
- 1968 Pontiac LeMans
- 1969 Pontiac LeMans
- 1970 Pontiac LeMans
- 1971 Pontiac LeMans
- 1972 Pontiac LeMans
- 1968 Pontiac Tempest
- 1969 Pontiac Tempest
- 1970 Pontiac Tempest
Fitment Note: The 030309-DDS is the double adjustable Big Block Chevrolet version of Detroit Speed's Front Coilover Conversion Kit for 1968-1972 GM A-Body applications. It uses 650 pounds/inch springs with a 9.5 inch free length. Use the supplied Detroit Speed spanner tool when making coilover spring and ride-height adjustments.
FAQs
What is the advantage of the double adjustable shocks in the Detroit Speed 030309-DDS kit?
The double adjustable shocks provide two independent adjustments and an extensive tuning range, giving you substantially more control over shock setup than the base or single adjustable versions. This allows the suspension to be tailored more closely to the vehicle, driver, and intended performance use while retaining excellent street ride quality.
What spring rate comes with the Detroit Speed 030309-DDS BBC Coilover Conversion Kit?
The 030309-DDS uses 650 pounds/inch coilover springs with a 9.5 inch free length. The conversion also provides extensive ride-height adjustment and includes the spring adjusting hardware, thrust bearings, thrust washers, and Detroit Speed spanner tool.
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 upgrading a big-block Chevelle, GTO, Skylark, Cutlass, El Camino, Monte Carlo, or another compatible GM A-Body with modern coilovers 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, spring rates, shock adjustment, or installation?
Email: sales@beefcakeracing.com
Phone: 1-855-827-7223
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