Detroit Speed's front subframe for 1967-1969 F-body and 1968-1974 GM X-Body platforms is engineered from the ground up to deliver precise handling, exceptional fit, and uncompromising performance. Designed as a complete bolt-in replacement for the factory front subframe, it incorporates Detroit Speed's exclusive suspension geometry, integrated rack-and-pinion steering, hydroformed frame rails, and stamped structural crossmembers to create a foundation worthy of today's horsepower, tire technology, and driving expectations.
PERFORMANCE RIDE & HANDLING:
Detroit Speed's proprietary suspension geometry delivers exceptional cornering grip, steering precision, and high-speed stability. Detroit Tuned coil-over shocks, co-developed with JRi, are engineered to complement the system with precise damping and refined ride quality.
Available in Fixed Valve, Single Adjustable, or Double Adjustable configurations, you can choose the level of tunability that best matches your vehicle, driving style, and performance goals. From comfortable street cruising to competitive track use, each option is engineered to deliver the performance expected from a Detroit Speed suspension system.
MODERN RACK-AND-PINION STEERING:
Replacing the factory steering system with an integrated rack-and-pinion design dramatically improves steering precision, responsiveness, and driver confidence. Combined with Detroit Speed's optimized suspension geometry, the system delivers accurate on-center feel, predictable turn-in, and consistent steering feedback through every corner.
HYDROFORMED RAIL TECHNOLOGY:
Detroit Speed is the only aftermarket manufacturer utilizing hydroformed frame rails in a bolt-in front subframe. Unlike fabricated rail designs, hydroforming creates complex shapes while maintaining material integrity and exceptional dimensional accuracy.
Combined with stamped structural crossmembers, the hydroformed rails create an exceptionally strong foundation that resists twisting under acceleration, braking, and cornering. By minimizing chassis deflection, the suspension maintains its intended geometry, allowing the control arms, springs, and shocks to perform as engineered. The result is more consistent steering response, predictable handling, outstanding durability, and OEM-quality fit and appearance.
ENGINE SWAP READY:
Designed to accommodate Small Block, Big Block, and LS/LT engine combinations without modification, the Detroit Speed front subframe provides the flexibility to build around proven GM powerplants while maintaining factory-style installation.
WIDE TIRE COMPATIBILITY:
The suspension architecture provides clearance for 10-inch-wide front wheels without requiring inner wheelhouse modifications, allowing larger tire packages that maximize available grip while preserving a clean installation.
FEATURES & BENEFITS:
- Complete bolt-in replacement for 1967-1969 Camaro, Firebird, and 1968-1974 Nova factory front subframes
- Detroit Speed exclusive suspension geometry improves steering precision, cornering grip, and vehicle stability
- Integrated rack-and-pinion steering delivers modern steering feel and responsive handling
- Exclusive hydroformed frame rails provide exceptional strength, dimensional accuracy, and OEM-quality fit
- Stamped structural crossmembers reinforce the subframe while maintaining suspension geometry under load
- Detroit Tuned coil-over shocks, co-developed with JRi, balance performance with refined ride quality
- Available with Fixed Valve, Single Adjustable, or Double Adjustable coil-over shocks
- Compatible with Small Block, Big Block, LS, and LT engine combinations
- Accommodates up to 10-inch-wide front wheels without inner wheelhouse modifications
- Powder coated or bare steel finishes available
OPTIONS:
- Coil-over shocks: Non-Adjustable, Single Adjustable, Double Adjustable, or Remote Reservoir Double Adjustable
- Spring rates: 550 lb/in (Small Block/LS/LT) or 650 lb/in (Big Block)
- Finish: Powder Coated or Bare Steel
FITMENT NOTES:
- Requires minimum 17” wheel diameter with at least 16.25” of inside barrel clearance
- Optional fluid transfer kit available for AN-converted rack & pinion plumbing
- Ships via freight
From the Installation Instructions
Kit Includes:
- Hydroformed front subframe with stamped crossmembers
- Pre-assembled tubular upper and lower control arms
- Power rack and pinion with mounting hardware and aluminum spacers
- Splined sway bar with composite bushings, C6-style end links and lock collars
- Detroit Tuned/JRi aluminum body coilover shocks with shock hardware
- Upper control arm bump stops
- Torrington bearing set and Detroit Speed/JRi spanner tool
- Upper and lower control arm hardware kits
Required / Sold Separately:
- Brakes (Baer or Wilwood packages, or any C6 Corvette brakes)
- Engine mounts, oil pan and headers specific to your engine
- Rack and pinion -6 AN fittings/hoses and 3/4"-36 input shaft kit
- Body mounts, subframe connectors and transmission crossmember (stock crossmember must be modified on 1970-81)
- Wheels and tires; optional M12 x 1.5 wheel stud kit (ARP 100-7708)
Installation Notes:
- Minimum 17" wheel with 16.250" inside diameter; 18x9.5 and 18x10 wheels not recommended
- Supports SBC, BBC, Pontiac and LS1/LS2/LS3/LS7/LS9 engines with the correct mount kit
- 1967-68 Camaro/Firebird may need inner fender modification; Nova requires factory body mount spacers
- Do not powder coat bare-kit control arms or the raw frame
- Professional alignment required
