87+ 2020 GMC Sierra 3500 HD Suspension & Steering SLT Parts

SLT · Suspension & Steering (85 products)

Exact-fit parts for the 2020 GMC Sierra 3500 HD SLT.

Hellwig

Part # 3518

Confirmed Fit

Hellwig 20-21 Chevy Silv 3500 Load Pro- 3500lb Level LC 4 Leaf Stack Helper Spring w/o Mounting Kit

$507.56

Firestone

Part # 2613

Confirmed Fit

Firestone Ride-Rite Air Helper Spring Kit Rear Chevy/GMC HD 2500/3500 (W217602613)

$702.68

Tuff Country

Part # 10958

Confirmed Fit

Tuff Country 20-23 Chevy Silverado GMC Sierra 2500HD/3500HD Ball Joint Upper Control Arms

$731.51

Air Lift

Part # 88341

Confirmed Fit

Air Lift Loadlifter 5000 Ultimate Rear Air Spring Kit for 2020+ Chevrolet Silverado 2500/3500

$732.99

Firestone

Part # 2709

Confirmed Fit

Firestone Ride-Rite RED Label Air Spring Kit Rear 2020 Chevrolet/GMC 2500/3500 2WD/4WD (W217602709)

$800.43

Cognito

Part # 199-91253

Confirmed Fit

Cognito 11-25 Chevrolet Silverado 2500 Alpha Ball Joint w/ Press-In Style Upper Control Arm

$97.23

Timbren

Part # GMRTT35D

Confirmed Fit

Timbren 2011 Chevrolet Silverado 2500 HD Rear Suspension Enhancement System

$398.07

Wehrli

Part # WCF100831

Confirmed Fit

Wehrli 20-24 Chevrolet Duramax Traction Bar Install Kit

$310.08

Cognito

Part # 210-91218

Confirmed Fit

Cognito 11-24 Chevy/GMC Silverado/Sierra 2500/3500 HD 2WD/4WD Deaver 4 Inch Leaf Spring Pack K97

$1837.39

Unity Automotive

Part # 2-211090-001

Confirmed Fit

Unity Automotive Front Shock Absorbers - 2-211090-001

$61.10

Cognito

Part # 110-91348

Confirmed Fit

Cognito 11-25 GM 2500/3500HD Steering Stabilizer Kit

$307.15

Fabtech

Part # FTSBK21

Confirmed Fit

Fabtech 2in Rear Leaf Spring Block Kit - 3/4in Pin

$57.87

Timbren

Part # GMRCK25D

Confirmed Fit

Timbren 2011 Chevrolet Silverado 2500 HD Rear Suspension Enhancement System

$269.36

Timbren

Part # GMFK25D

Confirmed Fit

Timbren 2011 Chevrolet Silverado 2500 HD Front Suspension Enhancement System

$269.36

Body Armor 4x4

Part # 504014-GM

Confirmed Fit

Body Armor 4x4 2020+ GMC/Chevy 2500HD/3500HD 4WD 1.5in-2in Key and Shock Extender

$138.00

Fabtech

Part # FTS71006

Confirmed Fit

Fabtech 6in Driver & Passenger Tie Rod Assembly Kit

$408.79

Hellwig

Part # 7328

Confirmed Fit

Hellwig 20-22 Chevrolet Silverado 2500 HD Solid Heat Treated Chromoly 1-5/16in Big Wig Rear Sway Bar

$798.84

Moog

Part # 515146

Confirmed Fit

MOOG 2011 Chevrolet Silverado 2500 HD Front Hub Assembly

$328.38

Hellwig

Part # 7782

Confirmed Fit

Hellwig 20-22 Chevrolet Silverado 2500/3500 HD 2/4WD Solid Chromoly 1-1/4in Rear Sway Bar

$771.75

SPC Performance

Part # 86326

Confirmed Fit

SPC Performance GM Alignment Cam Guide Pins (8)

$24.96

Frequently Asked Questions

Do these parts fit my 2020 GMC Sierra 3500 HD SLT?

This page groups parts listed for the 2020 GMC Sierra 3500 HD 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 suspension & steering options are available for my 2020 GMC Sierra 3500 HD SLT?

We offer a wide selection of suspension & steering parts for the 2020 GMC Sierra 3500 HD 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 2020 GMC Sierra 3500 HD SLT?

We carry parts from trusted brands including Cognito, Firestone, Moog, Wehrli, and Fabtech, plus many more. Filter by brand to find your preferred manufacturer.

How fast do 2020 GMC Sierra 3500 HD 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 2020 GMC Sierra 3500 HD 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.

2020 GMC Sierra 3500 HD(2,427 parts)

2020 GMC Sierra 3500 HD(2,427 parts)

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Other GMC Sierra 3500 HD Years

SLT · Suspension & Steering (85 products)

Hellwig 20-21 Chevy Silv 3500 Load Pro- 3500lb Level LC 4 Leaf Stack Helper Spring w/o Mounting Kit

Firestone Ride-Rite Air Helper Spring Kit Rear Chevy/GMC HD 2500/3500 (W217602613)

Tuff Country 20-23 Chevy Silverado GMC Sierra 2500HD/3500HD Ball Joint Upper Control Arms

Air Lift Loadlifter 5000 Ultimate Rear Air Spring Kit for 2020+ Chevrolet Silverado 2500/3500

Firestone Ride-Rite RED Label Air Spring Kit Rear 2020 Chevrolet/GMC 2500/3500 2WD/4WD (W217602709)

Cognito 11-25 Chevrolet Silverado 2500 Alpha Ball Joint w/ Press-In Style Upper Control Arm

Timbren 2011 Chevrolet Silverado 2500 HD Rear Suspension Enhancement System

Wehrli 20-24 Chevrolet Duramax Traction Bar Install Kit

Cognito 11-24 Chevy/GMC Silverado/Sierra 2500/3500 HD 2WD/4WD Deaver 4 Inch Leaf Spring Pack K97

Unity Automotive Front Shock Absorbers - 2-211090-001

Cognito 11-25 GM 2500/3500HD Steering Stabilizer Kit

Fabtech 2in Rear Leaf Spring Block Kit - 3/4in Pin

Timbren 2011 Chevrolet Silverado 2500 HD Rear Suspension Enhancement System

Timbren 2011 Chevrolet Silverado 2500 HD Front Suspension Enhancement System

Body Armor 4x4 2020+ GMC/Chevy 2500HD/3500HD 4WD 1.5in-2in Key and Shock Extender

Fabtech 6in Driver & Passenger Tie Rod Assembly Kit

Hellwig 20-22 Chevrolet Silverado 2500 HD Solid Heat Treated Chromoly 1-5/16in Big Wig Rear Sway Bar

MOOG 2011 Chevrolet Silverado 2500 HD Front Hub Assembly

Hellwig 20-22 Chevrolet Silverado 2500/3500 HD 2/4WD Solid Chromoly 1-1/4in Rear Sway Bar

SPC Performance GM Alignment Cam Guide Pins (8)

Frequently Asked Questions

Do these parts fit my 2020 GMC Sierra 3500 HD SLT?

What suspension & steering options are available for my 2020 GMC Sierra 3500 HD SLT?

What brands make parts for the 2020 GMC Sierra 3500 HD SLT?

How fast do 2020 GMC Sierra 3500 HD SLT parts ship?

What warranty do your 2020 GMC Sierra 3500 HD SLT parts come with?