CFM Industries Suspension Upgrades for 1973–1987 Squarebody Chevy and GMC Trucks

Take full control of your ride quality, axle position, and suspension geometry with CFM Industries suspension components — built specifically for 1973–1987 Squarebody pickups, K5 Blazers, Suburbans, and Jimmys. Now available through Blazin’ Biddles Off-Road, these parts are built for strength, adjustability, and real-world performance.

Whether you're correcting shackle angle, tuning your spring placement, or building a flex-ready off-road setup, CFM offers solutions that outperform the factory hardware in every way.

Built for 1973–1987 C/K-Series Squarebodies

All CFM Industries suspension components are precision-fit for:

• 1973–1987 Chevy and GMC C10, K10, C20, K20, C30, and K30 pickups
• 1973–1991 K5 Blazer, GMC Jimmy
• 1973–1991 Chevy and GMC Suburbans

These are bolt-on upgrades that solve known factory problems while giving you more control over your suspension setup.

Available Suspension Upgrades

Adjustable Front Spring Hangers

• Heavy-duty bolt-on design
• Allows front axle adjustment forward or rearward
• Compatible with 52-inch spring swaps
• Strengthens a known weak point in the front suspension

Adjustable Rear Spring Hangers

• Provides axle position adjustment and better pinion angle control
• Improves ride quality and traction under load
• Ideal for lifted trucks and rear spring upgrades

Shackle Flip Kit

• Reverses rear shackle orientation for better ride and flex
• Adds approximately 2.5 to 4 inches of lift
• Corrects poor factory geometry and extends rear travel