2001-2010 GMC Sierra 2500HD 4x4 - Tuff Country 6" Suspension Lift Kit

Tuff Country GMC Sierra 2500HD 6
Tuff Country - 16986-gmc
Authorized Dealer
Tuff Country #16985
Tuff Country - 16986-gmc
Authorized Dealer
Sale Price:
  • $1600.89
$2,001.11 Save: $400.22 (20%)
Save $160.09 more with Code: 10EXTRA - details


Usually Ships within 24 to 48 Hours (excluding Saturday and Sunday)
Arrives 1 to 5 days after product ships


When purchasing a suspension lift kit don't trust your truck to anything less than a Tuff Country EZ-Ride Suspension lift kit. More than your average lift kit, all systems are engineered to give the highest quality & best value on the market.

Gain additional tires clearance to fit 35" tires and a cool new look with this Tuff Country EZ-Ride Suspension GMC Sierra HD 6" lift kit. This GMC lift kit uses a combination of new extended steering knuckles and a one-piece sub-frame to lift the front end. 4" cast iron blocks lift the rear to level the GMC HD. Differential drop brackets and torsion bar drop brackets keep everything in alignment. Also included are lateral compression arms which along with the one-piece subframe strengthen and stabilize the front end.

Note: To purchase Tuff Country 16985KN (w/SX8000 Shocks) or 16985KH (w/SX6000 Shocks) please select in options above.

At Suspension Connection we are the #1 retailer of Tuff Country products in the world. Great prices, expert knowledge and exceptional customer service are why so many customers trust us with their Tuff Country purchases. Try us out!

Tuff Country has been producing quality suspension products for over 25 years and backs all lift kits with a limited lifetime warranty. image

Features and Benefits

  • Simple bolt-on installation
  • New steering knuckles eliminate need to drop upper control arms
  • One piece sub-frame gives increased strength and helps to eliminate squeaks and rattles
  • Includes lateral compression arms
  • Allows use of 35" x 12.5" tires

Installation Notes

1. Factory length shocks must be replaced with new extended shocks to install this lift kit properly. Please choose shocks & boots in the "Options" fields above if you have not already purchased extended shocks.

2. Only fits 2007-2010 models with torsion bar front end. Will not fit with coil over front end.

3. Will not fit models equipped with Stabilitrak.

4. Factory rims will not fit with this lift kit. A rim with a 4.5" back spacing or less is required.

5. Exhaust modification may be required on models with gas engines.

Tech Specs

Download Instructions: 16985 Instructions
Average Install Time 8-10 Hours
Recommended Tire Size: 35" x 12.5"
Amount of Lift: 6" Front / 4" Rear (levels front w/ rear)
Items Included: 1) One piece sub-frame, 2) Steering knuckles, 2) Differential drop brackets, 2) Torsion bar drop brackets, 2) Axle spacers, 1) Carrier bearing drop kit, 8) Transfer case shim, 4) U-bolts, 2) Rear 4" cast iron lift blocks, 1) Brakeline relocating kit, 2) Lateral compression arms and mounts and required hardware.
Weight: 110.00 lbs.
Part 16985 fits:
  • 2010 GMC Sierra 2500HD
  • 2009 GMC Sierra 2500HD
  • 2008 GMC Sierra 2500HD
  • 2007 GMC Sierra 2500HD
  • 2006 GMC Sierra 2500HD
  • 2005 GMC Sierra 2500HD
  • 2004 GMC Sierra 2500HD
  • 2003 GMC Sierra 2500HD
  • 2002 GMC Sierra 2500HD
  • 2001 GMC Sierra 2500HD

Customer Questions & Answers

Have a question about this product? Let one of our experts answer it for you!

We will respond with an answer ASAP.

With this lift kit, will I have to cut a piece off my front differential?
Yes with the 4" or 6" kit you will have to do some minor cutting to the front differential. It doesn't matter what brand of suspension you use for your GMC 2500HD cutting will be required.


  • 5.0 out of 1 Overall
  • 100% reviews recommend this product
Review Product
Everything was good :)
Lift kit was good only thing was it was very hard to install. After it was done the truck rode nice still tho very happy with it :) thanks
Recommend this Product: YES
2007 duramax
– Value
– Quality
– Installation