Get rear lift and better articulation in one move — a classic shackle flip built for your Squarebody.

This is the CFM Industries standard shackle flip kit, built for 1973–1991 Squarebody Chevy and GMC K-series 4x4 trucks, K5 Blazers, and GMC Jimmys. A shackle flip is one of the most proven ways to get rear lift and better suspension geometry out of a leaf-sprung Squarebody — and this adjustable kit does exactly that, giving you around 4" of lift in the back along with improved articulation off-road.

If you want to lift the rear of your truck, level out a front lift, and get more flex out of your suspension all at once, this is the setup. Adjustable and purpose-built, it's the foundation a lot of Squarebody rear suspension builds start with.

Why It Works

• Adds rear lift — roughly 4" of lift to raise the back or level out a front lift.
• Better articulation — more flex and performance out of a leaf-sprung rear end.
• Adjustable — dial in your rear suspension setup the way you want it.
• Built for K-series 4x4 — fits '73–'91 K10, K20, K30 trucks, K5 Blazers & Jimmys.
• Optional HD shackles — add heavy-duty shackles to complete the setup.

What You Need To Know

• For '73–'91 Squarebody Chevy/GMC K-series 4x4 trucks, K5 Blazers & GMC Jimmys.
• For leaf-spring rear suspension — adds approximately 4" of rear lift with improved articulation.
• Choose your option before ordering: include HD shackles, or run your own.
• Fabricated to order by CFM Industries.

Not sure how this flip will work with your current setup or lift? Text 530-327-8811 or email blazinbiddlesoffroad@gmail.com before you order — happy to walk through it with you.