76+ 2003 GMC Sierra 1500 Lift Kits & Leveling SLT Parts

SLT · Lift Kits & Leveling (76 products)

Exact-fit parts for the 2003 GMC Sierra 1500 SLT.

Tuff Country

Part # 60001

Confirmed Fit

Tuff Country 6in Air Bag Spacers Non-Tapered Pair

$75.51

Tuff Country

Part # 14959KN

Confirmed Fit

Tuff Country 99-05 Chevy Silverado 1500 4x4 4in Lift Kit (w/Multi-Piece Sub Frame SX8000 Shocks)

$1851.21

Tuff Country

Part # 50001

Confirmed Fit

Tuff Country 5in Air Bag Spacers Non-Tapered Pair

$83.75

Tuff Country

Part # 16959KN

Confirmed Fit

Tuff Country 99-05 Chevy Silverado 1500 4x4 6in Lift Kit (w/3pc Sub Frame SX8000 Shocks)

$2155.32

Tuff Country

Part # 97030

Confirmed Fit

Tuff Country 99-05 Chevy Silverado 1500 4wd 4in Rear Block & U-Bolt Kit

$190.12

Tuff Country

Part # 14959

Confirmed Fit

Tuff Country 99-05 Chevy Silverado 1500 4x4 4in Lift Kit (w/multi-piece Sub Frame No Shocks)

$1539.49

Tuff Country

Part # 16956

Confirmed Fit

Tuff Country 2006 Silverado 1500 4X4 6in Lft Kt (w/1-Pc Sub Frm w/o Fcty Air Ride Shock No Shocks)

$1850.78

Tuff Country

Part # 14955KN

Confirmed Fit

Tuff Country 99-05 Chevy Silverado 1500 4x4 4in Lift Kit (w/One Piece Sub Frame SX8000 Shocks)

$1768.72

Tuff Country

Part # 97029

Confirmed Fit

Tuff Country 99-05 Chevy Silverado 1500 4wd 3in Rear Block & U-Bolt Kit

$126.32

Tuff Country

Part # 12926

Confirmed Fit

Tuff Country 99-06 GMC Sierra 1500 4x4 2in Lift Kit (with Rear Lift Blocks No Shocks)

$267.57

Tuff Country

Part # 12925

Confirmed Fit

Tuff Country Box Kit 2in

$350.68

Belltech

Part # 34931

Confirmed Fit

Belltech LEVELING SPACER 3/4inch 99-06 GM 1500 FRONT

$62.21

Tuff Country

Part # 40001

Confirmed Fit

Tuff Country 4in Air Bag Spacers Non-Tapered Pair

$74.97

Skyjacker

Part # C209P

Confirmed Fit

Skyjacker 1999-1999 Chevrolet C1500 Pickup Coil Spring Spacer

$159.77

Tuff Country

Part # 12913

Confirmed Fit

Tuff Country 99-06 GMC Sierra 1500 4x4 2in Leveling Kit Front (w/Front Shock Extensions)

$239.01

Tuff Country

Part # 16961

Confirmed Fit

Tuff Country 2006 GMC Sierra 1500 4X4 6in Lift Kit (w/3-Piece Sub Frame w/Fcty Air Ride Shocks)

$1942.07

Tuff Country

Part # 16960

Confirmed Fit

Tuff Country 2006 Silverado 1500 4X4 6in Lift Kt(w/3pc Sub Frm w/o Fcty Air Ride Shock No Shocks)

$1914.73

Tuff Country

Part # 20001

Confirmed Fit

Tuff Country 2in Air Bag Spacers Non-Tapered Pair

$93.82

Tuff Country

Part # 30001

Confirmed Fit

Tuff Country 3in Air Bag Spacers Non-Tapered Pair

$59.14

Tuff Country

Part # 14955

Confirmed Fit

Tuff Country 99-05 Chevy Silverado 1500 4x4 4in Lift Kit (w/One Piece Sub Frame No Shocks)

$1457.00

Frequently Asked Questions

Do these parts fit my 2003 GMC Sierra 1500 SLT?

This page groups parts listed for the 2003 GMC Sierra 1500 SLT. Some products fit every trim, while others depend on submodel, engine, drivetrain, or brake package. Use your trim in My Garage or the product page fitment check to confirm exact fit.

What lift kits & leveling options are available for my 2003 GMC Sierra 1500 SLT?

We offer a wide selection of lift kits & leveling parts for the 2003 GMC Sierra 1500 SLT. This page narrows the catalog to the year, make, and model; use your trim on product pages to confirm exact fit when a part only fits certain submodels.

What brands make parts for the 2003 GMC Sierra 1500 SLT?

We carry parts from trusted brands including Tuff Country, Skyjacker, Superlift, Maxtrac, and Belltech, plus many more. Filter by brand to find your preferred manufacturer.

How fast do 2003 GMC Sierra 1500 SLT parts ship?

Most in-stock items ship within 1-2 business days. Shipping rates are calculated at checkout based on your location.

What warranty do your 2003 GMC Sierra 1500 SLT parts come with?

Warranty coverage varies by manufacturer but typically ranges from 1 year to lifetime. Each product page includes specific warranty information from the manufacturer.

2003 GMC Sierra 1500(5,353 parts)

2003 GMC Sierra 1500(5,353 parts)

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Other GMC Sierra 1500 Years

SLT · Lift Kits & Leveling (76 products)

Tuff Country 6in Air Bag Spacers Non-Tapered Pair

Tuff Country 99-05 Chevy Silverado 1500 4x4 4in Lift Kit (w/Multi-Piece Sub Frame SX8000 Shocks)

Tuff Country 5in Air Bag Spacers Non-Tapered Pair

Tuff Country 99-05 Chevy Silverado 1500 4x4 6in Lift Kit (w/3pc Sub Frame SX8000 Shocks)

Tuff Country 99-05 Chevy Silverado 1500 4wd 4in Rear Block & U-Bolt Kit

Tuff Country 99-05 Chevy Silverado 1500 4x4 4in Lift Kit (w/multi-piece Sub Frame No Shocks)

Tuff Country 2006 Silverado 1500 4X4 6in Lft Kt (w/1-Pc Sub Frm w/o Fcty Air Ride Shock No Shocks)

Tuff Country 99-05 Chevy Silverado 1500 4x4 4in Lift Kit (w/One Piece Sub Frame SX8000 Shocks)

Tuff Country 99-05 Chevy Silverado 1500 4wd 3in Rear Block & U-Bolt Kit

Tuff Country 99-06 GMC Sierra 1500 4x4 2in Lift Kit (with Rear Lift Blocks No Shocks)

Tuff Country Box Kit 2in

Belltech LEVELING SPACER 3/4inch 99-06 GM 1500 FRONT

Tuff Country 4in Air Bag Spacers Non-Tapered Pair

Skyjacker 1999-1999 Chevrolet C1500 Pickup Coil Spring Spacer

Tuff Country 99-06 GMC Sierra 1500 4x4 2in Leveling Kit Front (w/Front Shock Extensions)

Tuff Country 2006 GMC Sierra 1500 4X4 6in Lift Kit (w/3-Piece Sub Frame w/Fcty Air Ride Shocks)

Tuff Country 2006 Silverado 1500 4X4 6in Lift Kt(w/3pc Sub Frm w/o Fcty Air Ride Shock No Shocks)

Tuff Country 2in Air Bag Spacers Non-Tapered Pair

Tuff Country 3in Air Bag Spacers Non-Tapered Pair

Tuff Country 99-05 Chevy Silverado 1500 4x4 4in Lift Kit (w/One Piece Sub Frame No Shocks)

Frequently Asked Questions

Do these parts fit my 2003 GMC Sierra 1500 SLT?

What lift kits & leveling options are available for my 2003 GMC Sierra 1500 SLT?

What brands make parts for the 2003 GMC Sierra 1500 SLT?

How fast do 2003 GMC Sierra 1500 SLT parts ship?

What warranty do your 2003 GMC Sierra 1500 SLT parts come with?