2020-2026 GM 2500HD/3500HD 6.6L L5P Duramax Lift Kits

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Fabtech K1217 6” Lift Sport System w/ Adaptive Ride Control | 2025 GM Sierra/Silverado 1500 4WD
Fabtech K1217 6” Lift Sport System w/ Adaptive Ride Control | 2025 GM Sierra/Silverado 1500 4WD

FabTech

Fabtech K1217 6” Lift Sport System w/ Adaptive Ride Control | 2025 GM Sierra/Silverado 1500 4WD

SKU: FABK1217
Sale price
$1,960.47
Regular price
$2,178.30
SAVE $217.83
Fabtech K1220M 6” Lift Sport System w/ Stealth Shocks | 2025 GM Sierra/Silverado 1500 4WD
Fabtech K1220M 6” Lift Sport System w/ Stealth Shocks | 2025 GM Sierra/Silverado 1500 4WD

FabTech

Fabtech K1220M 6” Lift Sport System w/ Stealth Shocks | 2025 GM Sierra/Silverado 1500 4WD

SKU: FABK1220M
Sale price
$1,969.99
Regular price
$2,188.88
SAVE $218.89
Fabtech K1220 6” Lift Sport System w/ Performance Shocks | 2025 GM Sierra/Silverado 1500 4WD
Fabtech K1220 6” Lift Sport System w/ Performance Shocks | 2025 GM Sierra/Silverado 1500 4WD

FabTech

Fabtech K1220 6” Lift Sport System w/ Performance Shocks | 2025 GM Sierra/Silverado 1500 4WD

SKU: FABK1220
Sale price
$1,886.42
Regular price
$2,096.02
SAVE $209.60
Fabtech K1230DL 4” Performance System w/ DL 2.5 Resi | 2025 GM Sierra/Silverado 1500
Fabtech K1230DL 4” Performance System w/ DL 2.5 Resi | 2025 GM Sierra/Silverado 1500

FabTech

Fabtech K1230DL 4” Performance System w/ DL 2.5 Resi | 2025 GM Sierra/Silverado 1500

SKU: FABK1230DL
Sale price
$4,218.80
Regular price
$4,687.56
SAVE $468.76
Fabtech K1231M 4” Sport System w/ Stealth Shocks | 2025 GM Sierra/Silverado 1500
Fabtech K1231M 4” Sport System w/ Stealth Shocks | 2025 GM Sierra/Silverado 1500

FabTech

Fabtech K1231M 4” Sport System w/ Stealth Shocks | 2025 GM Sierra/Silverado 1500

SKU: FABK1231M
Sale price
$2,045.92
Regular price
$2,273.24
SAVE $227.32
Fabtech K1231 4” Sport System w/ Performance Shocks | 2025 GM Sierra/Silverado 1500
Fabtech K1231 4” Sport System w/ Performance Shocks | 2025 GM Sierra/Silverado 1500

FabTech

Fabtech K1231 4” Sport System w/ Performance Shocks | 2025 GM Sierra/Silverado 1500

SKU: FABK1231
Sale price
$1,962.33
Regular price
$2,180.38
SAVE $218.05
Fabtech K1223DL 1.5″ Sport System W/ DL 2.5 Resi & 2.25 N/R Shocks | 2025 GMC/Chevrolet 1500
Fabtech K1223DL 1.5″ Sport System W/ DL 2.5 Resi & 2.25 N/R Shocks | 2025 GMC/Chevrolet 1500

FabTech

Fabtech K1223DL 1.5″ Sport System W/ DL 2.5 Resi & 2.25 N/R Shocks | 2025 GMC/Chevrolet 1500

SKU: FABK1223DL
Sale price
$3,299.05
Regular price
$3,665.62
SAVE $366.57
Fabtech K1224M 1.5″ Sport System W/ Stealth Shocks | 2025 GMC/Chevrolet 1500
IN STOCK
Fabtech K1224M 1.5″ Sport System W/ Stealth Shocks | 2025 GMC/Chevrolet 1500

FabTech

Fabtech K1224M 1.5″ Sport System W/ Stealth Shocks | 2025 GMC/Chevrolet 1500

SKU: FABK1224M
Sale price
$883.56
Regular price
$981.74
SAVE $98.18
Fabtech K1214 3" Uniball UCA System w/ MAG Ride | 2025 GM Sierra/Silverado 1500 2WD/4WD
Fabtech K1214 3" Uniball UCA System w/ MAG Ride | 2025 GM Sierra/Silverado 1500 2WD/4WD

FabTech

Fabtech K1214 3" Uniball UCA System w/ MAG Ride | 2025 GM Sierra/Silverado 1500 2WD/4WD

SKU: FABK1214
Sale price
$1,131.60
Regular price
$1,256.23
SAVE $124.63
Fabtech K1213M 3" Uniball UCA System w/ Stealth Shocks | 2025 GM Sierra/Silverado 1500 2WD/4WD
Fabtech K1213M 3" Uniball UCA System w/ Stealth Shocks | 2025 GM Sierra/Silverado 1500 2WD/4WD

FabTech

Fabtech K1213M 3" Uniball UCA System w/ Stealth Shocks | 2025 GM Sierra/Silverado 1500 2WD/4WD

SKU: FABK1213M
Sale price
$1,200.85
Regular price
$1,333.18
SAVE $132.33
Fabtech K1213 3" Uniball UCA System w/ Performance Shocks | 2025 GM Sierra/Silverado 1500 2WD/4WD
Fabtech K1213 3" Uniball UCA System w/ Performance Shocks | 2025 GM Sierra/Silverado 1500 2WD/4WD

FabTech

Fabtech K1213 3" Uniball UCA System w/ Performance Shocks | 2025 GM Sierra/Silverado 1500 2WD/4WD

SKU: FABK1213
Price
$1,117.28
BDS 1834FPE 3 inch FOX 2.5 Elite Coilover Lift Kit | 2020-2025 GM 2500HD/3500HD 6.6L Duramax
BDS 1834FPE 3 inch FOX 2.5 Elite Coilover Lift Kit | 2020-2025 GM 2500HD/3500HD 6.6L Duramax

BDS Suspension

BDS 1834FPE 3 inch FOX 2.5 Elite Coilover Lift Kit | 2020-2025 GM 2500HD/3500HD 6.6L Duramax

SKU: BDS1834FPE
Price
$7,150.84
BDS 1831FPE 3 inch FOX 2.5 Elite Coilover Lift Kit | 2020-2025 GM 2500HD/3500HD 6.6L Duramax w/o Rear Overload
BDS 1831FPE 3 inch FOX 2.5 Elite Coilover Lift Kit | 2020-2025 GM 2500HD/3500HD 6.6L Duramax w/o Rear Overload

BDS Suspension

BDS 1831FPE 3 inch FOX 2.5 Elite Coilover Lift Kit | 2020-2025 GM 2500HD/3500HD 6.6L Duramax w/o Rear Overload

SKU: BDS1831FPE
Price
$7,279.79
BDS 1828FPE 3 inch FOX 2.5 Elite Coilover Lift Kit | 2020-2025 GM 2500HD/3500HD 6.6L Duramax w/ Rear Overload
BDS 1828FPE 3 inch FOX 2.5 Elite Coilover Lift Kit | 2020-2025 GM 2500HD/3500HD 6.6L Duramax w/ Rear Overload

BDS Suspension

BDS 1828FPE 3 inch FOX 2.5 Elite Coilover Lift Kit | 2020-2025 GM 2500HD/3500HD 6.6L Duramax w/ Rear Overload

SKU: BDS1828FPE
Price
$7,279.79
BDS 1832FPE 3 inch FOX 2.0 Coilover Lift Kit | 2020-2025 GM 2500HD/3500HD 6.6L Duramax
BDS 1832FPE 3 inch FOX 2.0 Coilover Lift Kit | 2020-2025 GM 2500HD/3500HD 6.6L Duramax

BDS Suspension

BDS 1832FPE 3 inch FOX 2.0 Coilover Lift Kit | 2020-2025 GM 2500HD/3500HD 6.6L Duramax

SKU: BDS1832FPE
Price
$5,890.79
BDS 1829FPE 3 inch FOX 2.0 Coilover Lift Kit | 2020-2025 GM 2500HD/3500HD 6.6L Duramax w/o Rear Overload
BDS 1829FPE 3 inch FOX 2.0 Coilover Lift Kit | 2020-2025 GM 2500HD/3500HD 6.6L Duramax w/o Rear Overload

BDS Suspension

BDS 1829FPE 3 inch FOX 2.0 Coilover Lift Kit | 2020-2025 GM 2500HD/3500HD 6.6L Duramax w/o Rear Overload

SKU: BDS1829FPE
Price
$6,019.74
BDS 1812FPE 3 inch FOX 2.0 Coilover Lift Kit | 2020-2025 GM 2500HD/3500HD 6.6L Duramax w/ Rear Overload
BDS 1812FPE 3 inch FOX 2.0 Coilover Lift Kit | 2020-2025 GM 2500HD/3500HD 6.6L Duramax w/ Rear Overload

BDS Suspension

BDS 1812FPE 3 inch FOX 2.0 Coilover Lift Kit | 2020-2025 GM 2500HD/3500HD 6.6L Duramax w/ Rear Overload

SKU: BDS1812FPE
Price
$6,019.74
ReadyLift 69-30320 3-inch SST Lift Kit with Fabricated Control Arms and Falcon 1.1 Monotube Shocks | 2020-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P
ReadyLift 69-30320 3-inch SST Lift Kit with Fabricated Control Arms and Falcon 1.1 Monotube Shocks | 2020-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P

ReadyLift Suspension

ReadyLift 69-30320 3-inch SST Lift Kit with Fabricated Control Arms and Falcon 1.1 Monotube Shocks | 2020-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P

SKU: RLS69-30320
Price
$1,549.95
ReadyLift 62-30360 3-inch SST2.1 Lift Kit with Fabricated Control Arms and Falcon Shocks | 2020-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P
ReadyLift 62-30360 3-inch SST2.1 Lift Kit with Fabricated Control Arms and Falcon Shocks | 2020-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P

ReadyLift Suspension

ReadyLift 62-30360 3-inch SST2.1 Lift Kit with Fabricated Control Arms and Falcon Shocks | 2020-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P

SKU: RLS62-30360
Price
$2,259.95
ReadyLift 42-30640 6" inch MAX2.1 Suspension System with Falcon 2.1 Shocks | 2020-2024 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P
ReadyLift 42-30640 6" inch MAX2.1 Suspension System with Falcon 2.1 Shocks | 2020-2024 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P

ReadyLift Suspension

ReadyLift 42-30640 6" inch MAX2.1 Suspension System with Falcon 2.1 Shocks | 2020-2024 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P

SKU: RLS42-30640
Price
$3,359.95
ReadyLift 42-30840 8-inch MAX3.3 Suspension System with Falcon 3.3 Shocks And Fab UCA Arms | 2020-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P
ReadyLift 42-30840 8-inch MAX3.3 Suspension System with Falcon 3.3 Shocks And Fab UCA Arms | 2020-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P

ReadyLift Suspension

ReadyLift 42-30840 8-inch MAX3.3 Suspension System with Falcon 3.3 Shocks And Fab UCA Arms | 2020-2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P

SKU: RLS42-30840
Price
$4,729.95
Cognito 199-90189 Carrier Bearing Spacer 3-4" inch | 2001-2025 GM 2500HD/3500HD & 11-16 Ford F250/F350
Cognito 199-90189 Carrier Bearing Spacer 3-4" inch | 2001-2025 GM 2500HD/3500HD & 11-16 Ford F250/F350

Cognito

Cognito 199-90189 Carrier Bearing Spacer 3-4" inch | 2001-2025 GM 2500HD/3500HD & 11-16 Ford F250/F350

SKU: COG199-90189
Price
$96.25
Cognito 110-90629 Enhancement Plate Kit For SM Series Compression Strut Kit | 2011-2025 GM Silverado/Sierra 2500HD/3500HD
IN STOCK
Cognito 110-90629 Enhancement Plate Kit For SM Series Compression Strut Kit | 2011-2025 GM Silverado/Sierra 2500HD/3500HD

Cognito

Cognito 110-90629 Enhancement Plate Kit For SM Series Compression Strut Kit | 2011-2025 GM Silverado/Sierra 2500HD/3500HD

SKU: COG110-90629
Price
$229.95
Carli CS-DRBD-1875 Rear Bump Stop Drops | 2014-2024 GM/Ram 2500 4WD Air Ride
IN STOCK
Carli CS-DRBD-1875 Rear Bump Stop Drops | 2014-2024 GM/Ram 2500 4WD Air Ride

Carli Suspension

Carli CS-DRBD-1875 Rear Bump Stop Drops | 2014-2024 GM/Ram 2500 4WD Air Ride

SKU: CISCS-DRBD-1875
Price
$201

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DIESEL TRUCK EXPERTS STANDING BY

Give your 2020-2026 GM 2500HD/3500HD 6.6L Duramax a commanding presence on the road and trail with a premium lift kit from Alligator Performance! Whether you're seeking better off-road capability, improved ground clearance, or just a better view of the road, our selection of Sierra and Silverado lift kits has what you need. With the right lift kit, you can conquer rugged trails or give your truck a bold stance that’s guaranteed to turn heads around every corner. Most lift kits are designed to accommodate larger Wheel & Tire combinations, allowing you to further transform your ride into a formidable off-road beast. GM Duramax Fitments: 2020, 2021, 2022, 2023, 2024, 2025, 2026 GM 6.6L Duramax. Submodel Fitments: WT, Custom, LT, LTZ, High Country, 1LT, 2LT, Pro, SLE, SLT, AT4, Denali. Some exceptions apply, please see individual product pages for specific fitments. 

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