KSP Rear Silverado Shock Extender Compatible with Chevy/GMC Lifting for 2-4" in back, Shock Extension for 1999-2024 Silverado Sierra 1500 2WD/4WD 2-4 inch Rear Lifted, 2PC Black Powder Coated Bracket

Made my 03 2500HD sit beautiful with my keys turned up alittle more then half. Picture with the door open is before installing the blocks

Great product, perfect fit!!!

This is well built product. Amazon claimed it would not fit my 2004 Suburban, but I bought it anyway because it looked strong and no one offers an angled rear extension. It fits perfectly. On the rear, the bottom must be angled, or it will bind if it fits at all.

A year or so ago, I ordered the KSP 2.5" front spaces for my 2016 Silverado. The truck looked level at the time but I had Helper Shocks in the rear at the time. The helper shocks were too noisy and squeaked horribly. After removing the shocks, the truck had a squat to it. I ordered these 3" Blocks to replace the factory blocks of ~ 1.25". The result is perfect. I have the lift I desired with the factory rake back. To install these follow the same instructions as someone else posted. With the truck on the ground: -Loosen and remove one ubolt -Install one new longer ubolt with the nuts tightened just enough so the ubolt threads pass completely thru the nut -Repeat for second ubolt on same side -Using a floor jack, lift the leaf spring up away from the axle and support leaf spring with jack stand -Silde existing block out and replace with new block (tapered end toward front of truck) -Remove jack stand and lower spring back on to the new block -Be sure the holes and pins in the new block line up -Torque down new bolts and repart for opposite side. I was able to do this install in 25 minutes in my driveway with a 22mm deep socket and my M18 Impact Gun. Drive the vehicle and retorque the nuts after a 20-30 miles. Instructions were not included but I did 85 ft lbs on my torque wrench.

Fit perfectly and helped to achieve a 4” drop along with drop hangers, shackles and shocks.