DSE Rear Speed Kit 1 (041651DS) - 1967-1972 Chevrolet C10 / GMC C15 with Truck Arms and Rear Coil Springs
Lower your classic GM truck the right way with the Detroit Speed Rear Speed Kit 1. Designed around the factory truck-arm and coil-spring rear suspension found in compatible 1967-1972 Chevrolet C10 and GMC C15 trucks, 041651DS delivers a 5.5-inch rear lowering package engineered for more than just stance. Detroit Speed combines custom-wound lowering coil springs, Detroit Tuned drop shocks, a frame notch, adjustable track bar, shock relocation components, and fresh trailing arm bushings to improve ride quality, handling, rear axle control, and overall suspension performance.
The custom-wound coil springs provide the 5.5-inch drop while maintaining the truck's hauling capacity. Relocated shock mounts improve the shocks' ability to control rear axle movement while creating additional exhaust clearance. Detroit Speed also relocates and lengthens the adjustable track bar to improve rear stability, provide multiple roll center adjustment positions, and allow the rear axle to be properly centered after lowering. The unique frame notch creates the necessary axle-to-frame clearance while reinforcing the chassis around the coil spring mounting points.
Specifications
- Manufacturer: Detroit Speed
- Part Number: 041651DS
- Product Type: Rear Speed Kit
- Speed Kit: Rear Speed Kit 1
- Position: Rear
- Application: 1967-1972 Chevrolet C10 and compatible GMC C15/C1500 Pickup
- Required Rear Suspension: Factory Truck Arms with Coil Springs
- Axle Application: Stock
- Coil Springs Included: Yes
- Coil Spring Lowering: 5.5 inches
- Overall Rear Lowering: Approximately 5 to 6 inches
- Shock Type: Detroit Tuned Non-Adjustable Drop Shocks
- Adjustable Track Bar: Included
- Trailing Arm Bushings: Included
- Factory-Length U-Bolts: Included
- U-Bolt Finish: Electroplated for Corrosion Resistance
- Installation Hardware: Included
- Basic Fabrication Required: Measuring, Cutting, and Drilling
Features
- Complete rear lowering solution for trucks equipped with the factory truck-arm and coil-spring rear suspension
- Custom-wound coil springs provide 5.5 inches of lowering for a significantly more aggressive stance
- Coil springs are engineered to improve ride quality without sacrificing truck hauling capacity
- Detroit Tuned non-adjustable drop shocks provide controlled suspension response and comfortable ride quality
- Relocated shock mounts improve shock control of the rear axle
- Shock relocation provides additional exhaust clearance
- Frame notch provides the necessary axle-to-frame clearance at the lowered ride height
- Unique frame notch design improves chassis rigidity around the coil spring mounting points
- Adjustable track bar allows the rear axle to be centered after lowering
- Cross-axis pivot bushings provide controlled track bar articulation
- Lengthened and leveled track bar geometry improves rear suspension stability
- Relocated track bar mounting provides multiple rear roll center adjustment positions
- Factory-length U-bolts are electroplated for corrosion resistance
- Replacement trailing arm bushings help restore proper performance of the factory trailing arms
- Frame notch and track bar are the same components used with the Detroit Speed QUADRALink system, simplifying a potential future QUADRALink upgrade
- Includes lowering coil springs, drop shocks, frame notch, adjustable track bar, shock relocation components, trailing arm bushings, U-bolts, and installation hardware
Fitment Notes
This suspension system fits trucks equipped with factory truck arms and rear coil springs only. It does not fit trucks equipped with leaf spring rear suspension because the frame configuration is different. Compatible 1967-1972 GMC C15/C1500 trucks must have the optional factory truck-arm and coil-spring rear suspension. Installation requires basic fabrication skills including measuring, cutting, and drilling. The relocated track bar allows 3-inch exhaust to be routed above the track bar on the passenger side. A factory-style differential cover is required to provide the necessary differential and exhaust clearance. Oversized aluminum differential covers do not provide the required clearance.
Fitment
- 1967 Chevrolet C10 Pickup
- 1968 Chevrolet C10 Pickup
- 1969 Chevrolet C10 Pickup
- 1970 Chevrolet C10 Pickup
- 1971 Chevrolet C10 Pickup
- 1972 Chevrolet C10 Pickup
- 1967 GMC C15/C1500 Pickup with factory optional truck-arm and coil-spring rear suspension
- 1968 GMC C15/C1500 Pickup with factory optional truck-arm and coil-spring rear suspension
- 1969 GMC C15/C1500 Pickup with factory optional truck-arm and coil-spring rear suspension
- 1970 GMC C15/C1500 Pickup with factory optional truck-arm and coil-spring rear suspension
- 1971 GMC C15/C1500 Pickup with factory optional truck-arm and coil-spring rear suspension
- 1972 GMC C15/C1500 Pickup with factory optional truck-arm and coil-spring rear suspension
FAQs
How much does DSE Rear Speed Kit 1 041651DS lower the rear of a C10?
The included Detroit Speed coil springs provide 5.5 inches of lowering, with Detroit Speed describing the complete system as providing approximately 5 to 6 inches of rear ride-height reduction.
Does DSE 041651DS fit a leaf-spring C10 or GMC C15?
No. This kit is specifically engineered for trucks equipped with factory truck arms and rear coil springs. Detroit Speed states that it will not fit leaf-spring trucks because the frame is different.
Does installation of DSE 041651DS require fabrication?
Yes. Although the components are designed for bolt-in installation, Detroit Speed specifies that basic fabrication skills are required, including measuring, cutting, and drilling.
Why Buy from Beefcake Racing?
Beefcake Racing is your source for Detroit Speed suspension and chassis components for classic GM truck builds. Whether you are dialing in the stance of a street-driven C10 or building a complete performance suspension package, our team can help you select the right components for your combination. Questions about DSE 041651DS or related suspension parts? Call 1-855-827-7223 or email sales@beefcakeracing.com.
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