KSP 2" Lift Block for Chevy Silverado & GMC Sierra 1500HD 2500HD 3500HD 2000-2010, 2inch Rear Leveling Kit with Square U-Bolts for 2001-2009 Chevy Avalanche 2500 2000-2010 Suburban Yukon XL 2500 8 Lug

They look & fit great. Easy to install.

These shock extenders are needed after installing the leveling shackles. They don’t take long to install and come with all the nuts, bolts, and washers you need. You will need a good drill bit to drill the brace bolt but it’s quick and simple. Great quality product. Highly recommend.

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.

Wanted to level out my 2014 gmc sierra works great fit perfectly with no modifications lift truck drop axle went right in few hours by myself only hard part was removing old u bolt product works perfectly fast shipping highly recommended 3 inch block.

Love the finish, seams like it will hold up well, easy installation, pretty straight foreward..

U bolts not for larger trucks... Too small...All works as designed however. Though I can't attest to u bolts... They sit on shelf waiting for a smaller project to come along. As stated by another helpful review.

Don't be intimidated by this project!Install took 50 minutes start to finish.15/16 Impact socket or wrench (for factory u-bolts)7/8 Impact socket or wrench (new u-bolts)Biggest impact or hammer you ownPenetrating oilCome-along/cable winch ($25 at Walmart)4 pound hammerChalk all 4 wheels.Lift the rear of the truck by the frame until the rear wheels barely leave the ground.Remove the factory axle u-bolts.Lift the truck off if the axle enough to fit lift blocks between springs.Lower truck enough to put light pressure on the leaf springs.Use the come-along to pull the axle forward or backward until the spring and block pins line up.Use the 4 lb hammer for sideways alignment.Install new u-bolts, snug but not tight.Lower truck until all weight is removed from jack and applied to leaf springs.Tighten u-bolts evenly.My 04 Sierra 2500HD has RPO codesHVY - Indentification 2 inch body raise, H.D. modelYD6 - Spring, rear (base equipment)Z82 - Trailering package (special) (Reese type hitch)Z85 - Chassis package, increased capacityI had 2.75" of extra bolt length with this kit.Yes, I would recommend and encourage anybody who turns their own wrench to do this mod if they so desire.

All the specs for this kit matched up perfectly for our 2006 NISSAN TITAN 4x4.Very high quality materials and actually showed up at my door earlier than expected.Just wanted to say thanks so very much for listing all the important details about the kit on Amazon. I was able to order it without the worry that it might not fit correct.Thanks again and please guys don’t hesitate to buy this super strong kit.Also I’m a welder and I was very impressed with the welds.

The installation went smoothly, no issues at all. Just needed to have purchased the shock extender, my bad.

Not bad they did everything I wanted them to for a good price. You just have to be careful with the ubolts because of the fine thread.

Good product for price have had no problem with u bolts any of the reviews that say bad bolts must be over tightening and stretching bolts causing failure.

Excellent quality for the price and easy install

Exactly as described. Have a level kit on my 2015 Sierra, but wanted some more rake for towing. Instructions were clear. Install took just over an hour in total using air tools in my driveway including getting organzied and cleanup. I swapped the ubolts first, lifted the leaf spring with a bottle jack and slide the new blocks right into place.