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3.5in GM Suspension Lift Kit

GM 3.5" Suspension Lift Kit [268.20]
GM 3.5" Suspension Lift Kit [268.20] Installed
In stock
SKU: 268.20 | Brand: Rough Country
Make sure it fits!


Introducing the redesigned GM 3.5-inch Suspension Lift by Rough Country Suspension Systems with some exciting upgrades to make your off-road experience even better. These updated kits now feature our critically acclaimed N2.0 shock absorbers and fabricated rear blocks.

Our Nitrogen charged N2 Shocks offer the best in balanced performance for on and off-road use, featuring a 10-stage velocity sensitive valving custom tuned for this specific application. That means these shocks are specifically valved for use with this specific vehicle and lift combo, giving you unparalleled performance for any driving situation.

Also included in this kit are a set of fabricated rear blocks. Fabricated blocks are stronger and offer a longer lifespan than cast blocks while being less susceptible to damage and the environment.
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  • Download Instructions
  • Install Time: 4 - 5 hours
    Average estimated install time peformed by a professional shop or mechanic.
  • Features

  • Easy bolt-on installation
  • Maintains factory ride quality
  • Increased ground clearance
  • Able to be returned to stock
  • Levels the front with the rear of the vehicle
  • No need to disassemble your struts to install
  • Includes application valved N2.0 series shock absorbers which offer the best in balanced performance for on and off-road use.
  • Notes

  • Does NOT fit 2007 "Classic" models.
  • Does NOT fit models with electric steering.
  • Requires minor trimming to the factory bumpstops.
  • Retain your factory wheels with our 0.25" wheel spacers (#1065).
This product features Rough Country's Lifetime Replacement Warranty. All products are warranted to be free from defects in material and craftsmanship for the life of the vehicle if utilized in accordance with the manufacturer's instructions for installation and operation of said products. For complete details and coverage information please click here.
We are proud to offer Same Day Shipping. If you place your order before 4pm (cst) your order will be shipped that day. Parts ordered must be in stock for the order to ship. Approximately 97% of all orders placed leave our warehouses within 24 to 48 hours(not including weekends & holidays). For complete details please click here.


  • Front
  • Upper strut spacers
  • Hardware
  • Rear
  • 1.5" lift blocks
  • U-bolts
  • Hardware
  • Shocks
  • (2) Rear Premium N2.0 series

Fitment Table

Years Drive Make Model
2007-20132WDChevroletSilverado 1500 Pickup
2007-20132WDGMCSierra 1500 Pickup
Always check the product's overview, for more important fitment information


Tire Wheel Backspacing Offset
285/70 R17Factory 17--
285/70 R1717x9-0 to +18mm
285/65 R18Factory 18--
285/65 R1818x9-0 to +18mm
285/55 R20Factory 20--
285/55 R2020x9-0 to +18mm
Due to differences in manufacturing, dimension and inflated measurements, tire and wheel combinations should be test fit prior to installation.


  1. Great Kit Awesome lift and they shipped to Maui - Posted by: Kol (5/12/15)

    Love this lift. Easy to install does take some time if you are doing the install by yourself but very very happy with my purchase. My truck is a 2011 GMC Sierra and this lift gave my truck that aggressive stance. Paired my lift with 285/70/r17 Toyo Open Country R/T tires and 17 inch KMC Spyglass rims. Totally changed the look of my truck. People at my work love the way my truck looks now. get a lot of compliments on it. Rough Country is a company i will be buying more from.

  2. Exceeded my expectations - Posted by: Roberto A. (4/24/15)

    I totally love the look of my truck now!!! I gotta say this is impressive, I wanted to do this for a while, I always thought it was expensive, I was wrong!!! I totally recommend it!!

  3. Awesome product - Posted by: Rob (4/24/15)

    Love the way it looks. Along with my new Trail grappler G2s in a 285/70/17 it raised my 2008 Silverado 2wd exactly 5.5" in the front and 3.5" in the back. I was shocked. It was easy to do but did take a long time to install and help from a friend would be a big plus. BTW I had the factory 20" wheels before so the tires shouldnt have raised it but about .5-1in

  4. great product k loved it makes my truck look a lot better - Posted by: bear44 (4/13/15)

    I love my lift I did it myself and man does it make a difference u can see in the picture I uploaded my dark gray baby ;) i first got the 2inch leveling kit which are the 2 front blocks and I loved it at first but I wanted to go bigger so I looked at the other kits and 3.5 stood out the most but I had questions with the bumb stop I didn't even know where that was located at until I downloaded the instructions it told me to take off everything just to cut that little metal piece which I didn't take off but short story I love the kit I'm proply going to sell it for next year I'm going to go with a 6inch lift and 35s but one bit of advice bring a impact if ur going to do this not for the front but for the back ur going to be there for like 2 hours the u bolts are so freaking long!!!! I think that was proply the hardest part of the instalition but everything else was a breeze I'm in love and would recommend this kit just realignment is a must when ur done or ur going to eat ur tires up thanks rough counrty ;)

  5. Can't beat it - Posted by: Kato (4/12/15)

    Great product for the price. Took me about 4 1\2 hours to install the hardest part was putting the front spring and shock back in. Considering the local 4x4 place want $900 to install the same lift, and it cost me $150 and 4 hours of my time this is a great product.

  6. Great Kit - Posted by: Rob W (3/18/15)

    Kit is awesome. Paired with 285/70/17 nitto trail grapplers. Lifted my 2wd Ext Cab a full 5" in the front and 3.5" in the back. Tires accounted for about an inch or so of the difference. I thought I was fairly handy but I have to say it took me about 10-11 hours to install by myself. I would suggest having some help. Ride seems to be the same. Definitely get a front in alignment. Mine was way off but they had no trouble adjusting it.

  7. Great bang for your buck - Posted by: Jonah Kahn (2/22/15)

    If you're gonna install it by yourself it's gonna take a while, but that's the nature of the beast, otherwise it's a great kit that does exactly what it says and at an outstandingly low price.

  8. Best kit on the market! - Posted by: Danicas7 (2/16/15)

    After a week of researching different kit I decided to go with Rough Country. It was here two days later and the install was a breeze. It took me 3 hours total and Ai also installed a set of 18x9 XD wheels with Nitto 285/65r18 tires. It raised the front 6 1/2" total and rear 6". The truck looks great and the kit retained the factory ride quality. A small amount of trimming was done to plastic splash guard to clear for tires in a heavy turn. I recommend Rough Country to everyone. -Don Mosley

  9. Excellent Kit!!! - Posted by: Billy (9/9/14)

    Excellent Kit. Installed on my 2012 Silverado 2WD Ext Cab with only hand tools in about 4 hours. I'm pretty experienced with suspension work so someone who is new to it will probably take longer. Raised my 2WD 3.5 to 4. Great aggressive stance. I also purchased the Rough Country 2 inch wheel Spacers and paired them with my factory 18 inch wheels with 275/65/18 toyo AT 2s. Excellent look absolutely love it. I'll be purchasing the hideaway winch mount next( I had one installed previously already) that product also get 5+ stars.

    Rough Country. What the true country boys choose.

  10. Great results with an easy install - Posted by: M-Prento (1/23/14)

    Great, low-cost kit. Install was very easy, especially with the instructions that are included. Took a few hours to install with no problems. Highly recommend getting an alignment, like it says. Silverado 1500 2wd is now 1-2" taller than z71. Raised about 3-3.5" in front, 2-3" in rear. Highly recommend this kit.

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