2001-2010 GMC Sierra 2500HD 4x4 & 2wd - Tuff Country 2" Suspension Lift Kit (w/rear lift blocks)

2001-2010 GMC Sierra 2500HD 2
Shown with Shock Absorbers (sold separately, see options)
Tuff Country #12934
Tuff Country - 12934-gmc-lift-kit
Authorized Dealer
Sale Price:
  • $167.38
$206.64 Save: $39.26 (19%)
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Arrives 1 to 5 days after product ships


This Tuff Country 2" Lift Kit for the GMC Sierra 2500HD truck uses front replacement torsion bar keys and rear lift blocks to lift your Sierra 2". The included torsion bar keys reindex the factory 2500HD torsion bars which lifts the truck without "cranking up" the factory torsion bars.

Note: To purchase Tuff Country 12934KN (w/SX8000 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
  • Adds 2" of lift to front, 1" to rear of 2500HD
  • Cast Iron Lift Blocks designed specifically for the Sierra
  • No need to "crank up" torsion bars
  • Allows for more tire clearance
  • Proudly Made in the USA - (many other brands are not)
  • Lifetime Warranty

Installation Notes

1. Factory shocks can be used with this suspension lift kit, however new replacement shocks are strongly recommended. See options above.
2. Torsion bar keys are designed to install with a stock suspension only.  Do not use with other types of lift kits.  Will void warranty.
3. Note: All GMC/GMC factory torsion bar keys are marked with a color code in paint on the key.  If your vehicles markings are purple, please make sure to select that in the option field above.

Tech Specs

Download Instructions: 12934 Instructions
Average Install Time 4-6 Hours
Recommended Tire Size: N/A
Amount of Lift: 2" Front / 1" Rear
Items Included:

2) Front Torsion Bar Keys, 2) Rear Cast Iron 1" Lift Blocks, 4) Extended Rear U-bolts, 2) Front shocks relocation brackets, 2) Hardware bags

Weight: 27.00 lbs.
Part 12934 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.

Hi does this kit add 1 inch off lift to what is existing. Not sure if this is normal but my truck has a block that looks stock and measures around 1 inch high now.
This kit lift the front 2" and the rear 1". If your vehicle already has a 1" block in the rear this is not factory, it is aftermarket and you will not need the rear block when doing this kit. You can go with just the front kit, part number 12904


  • 4.5 out of 2 Overall
  • 100% reviews recommend this product
Review Product
Went on as expecting. Loving the lift on my truck. Looks great.
Recommend this Product: YES
2008 GMC Sierra 2500hd
– Value
– Quality
– Installation
kit looks nice
Kit took me a little while to install on my 2500, I had a buddy help me with it. Looks great, not too high just right for my taste. happy with it.
Recommend this Product: YES
2009 GMC 2500HD
– Value
– Quality
– Installation