CFMi - Adjustable Front Leaf Spring Hanger Pair for K-Series Squarebody Chevy Trucks, K5 Blazers and GMC Jimmys

CFM Industries Adjustable Front Leaf Spring Hangers

Upgrade your Squarebody suspension with adjustable front leaf spring hangers designed for 1973–1991 Chevy and GMC K-Series 4x4 trucks, K5 Blazers, and GMC Jimmys. These heavy-duty brackets allow you to fine-tune axle position, wheelbase, and spring length for better ride quality and off-road performance.

With multiple mounting positions up to 6 inches forward in 1-inch increments, these hangers give you the flexibility to run longer springs, improve suspension geometry, and build a setup that actually works for how you use your truck.

Features and Benefits

• Heavy-duty adjustable front spring hanger design
• Multiple mounting holes from factory position up to 6 inches forward
• 1-inch incremental adjustment for precise setup
• Supports improved ride quality and suspension performance
• Allows wheelbase adjustment up to approximately 3 inches
• Compatible with multiple leaf spring configurations

Fitment

Fits 1973–1991 Chevy and GMC K-Series 4WD Squarebody trucks and SUVs including:

• K10, K20, K30 pickups
• K5 Blazer
• GMC Jimmy

Spring Compatibility

• Factory 3-inch wide front springs (3.5-inch at bushing)
• Rear 2.5-inch wide springs (3-inch at bushing) using included spacers
• Supports 52-inch rear spring swaps
• Compatible with springs longer than 52 inches for advanced builds

Common Setup Options

• Swap from factory 46-inch springs to 52-inch rear springs while maintaining stock axle centerline (3-inch forward hole)
• Move springs further forward to gain up to 3 inches of wheelbase
• Run extended-length springs for improved articulation and ride quality

Installation

• Replaces factory front spring hangers
• Frame drilling and modification may be required depending on setup
• Designed for custom suspension builds and experienced installers
• Final positioning depends on spring choice and wheelbase goals

Finish

• Ships in bare steel
• Requires paint or powder coating before installation

Why This Upgrade Works

These adjustable spring hangers give Squarebody owners the ability to move beyond factory suspension limitations. Whether you're improving ride quality, increasing articulation, or dialing in wheelbase for off-road performance, this is a key upgrade for building a properly functioning suspension system.