1973-1987 GMC C15 2WD 3"/6" 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 the squarebody through dedicated front coils and a six-inch rear flip with a package designed specifically around the 1973-1987 C15 2WD chassis.
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. Because the rear is lowered six inches or more, frame clearance must be addressed with a C-notch before the truck is driven.
Kit Contents:
- 3-inch front lowering coils (pair)
- 6-inch rear axle flip kit
Vehicle Fitment:
- 1973-1987 GMC C15 2WD
Important Fitment & Installation Notes:
- Shocks are not included. Shorter front and rear shocks are required for the finished deep-drop ride height.
- A rear C-notch is required for adequate axle-to-frame clearance at this drop and is not included with this SKU.
- 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: 6 inches
Placement: Front & Rear
Brand: Trekline Motorsports
Trekline SKU: 1250DR057
