1973-1987 GMC C15 2WD 3"/5" Coil Spring Lowering Kit
GMC-specific listing: This version is cataloged specifically for 1973-1987 GMC C15 2WD squarebody trucks, with GMC-focused fitment, search terms and product navigation for the squarebody C15 platform.
Lower your GMC C15 with a matched coil-and-flip combination designed around the factory front spring pockets and rear leaf-spring suspension.
The front ride-height change comes from purpose-built lowering coils, giving the truck a predictable spring package without cutting the factory coils. This SKU focuses on the hard lowering components and leaves the shock choice separate, which can be useful when the truck already has compatible dampers or the builder wants to choose a specific shock package.
Kit Contents:
- 3-inch front lowering coils (pair)
- 5-inch rear axle flip kit
Vehicle Fitment:
- 1973-1987 GMC C15 2WD
Important Fitment & Installation Notes:
- Shocks are not included. Trekline recommends shorter shocks for this 3/5 coil-drop combination so the dampers operate in a more appropriate travel range.
- Trekline identifies this 3/5 combination as not requiring a C-notch under normal installation conditions; still verify axle-to-frame clearance on the finished truck.
- Perform a professional alignment after installation and verify steering clearance, brake-hose routing, bump-stop clearance, shock travel and fastener torque before regular road use.
- Lowering amounts are referenced from stock OEM ride height; worn springs, prior suspension modifications or existing sag can change the measured result.
Front Drop: 3 inches
Rear Drop: 5 inches
Placement: Front & Rear
Brand: Trekline Motorsports
Trekline SKU: 1250DR039
