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2in / 4in GM Lowering Kit

GM 2in / 4in Lowering Kit [721.20]
GM 2in / 4in Lowering Kit [721.20] Installed
GM 2in / 4in Lowering Kit [721.20]
GM 2in / 4in Lowering Kit [721.20]
Kit Overview
Installation Walkthrough
In stock
SKU: 721.20 | Brand: Rough Country
Make sure it fits!


  • Download Instructions
  • Install Time: 2-4 hours
    Average estimated install time peformed by a professional shop or mechanic.
  • Wheel BS: Factory
    Recommended wheel backspacing for use with this kit. Please see Instructions for complete notes on wheel backspacing.
  • Features

  • Easy bolt-on installation.
  • Drops the front 2-inches and the rear 4-inches for a level drop.
  • Rear drop is adjustable between 4-inches and 4.5-inches.
  • Can be fully realigned to factory specs.
  • Maintains factory ride quality.
  • Can be returned to stock height.
  • Notes

  • Requires 17-inch or larger wheels
  • Requires minor cutting and drilling
  • Requires rear axle flip
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
  • Lowering spindles
  • Rear
  • Spring hanger brackets
  • Axle saddles
  • U-bolt plates
  • U-bolts
  • Hardware
  • Shocks
  • (2) Premium N2.0 Series (Rear)

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


  1. Great product, easy to install with the proper tools. - Posted by: Joseph L. (7/19/15)

    Was very pleased with the quick shipping, easy installation and end result. My truck looks great now,thanks!

  2. Excellent Quality, Installed Flawlessly on 4WD - Posted by: Marky Mark (5/28/15)

    Excellent kit and quality. I used this on my 2008 CCSB 4WD with absolutely no issues. I did have to trim the upper ball joint stud, but that was the only hiccup, and quite a small one at that. I anticipated some issue while using this kit on a 4wd application, and was delightfully surprised when I found out that this was the only issue that I encountered.

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