Fabtech’s 4" Performance systems utilize their proven heavy duty construction and design features for a robust suspension upgrade. The 4" system features high arched lower control arm crossmembers constructed of 1/4" thick steel for maximum strength. The Fabtech ductile iron steering knuckles retain the near stock track width keeping tires under the fender for a clean appearance. Rear lift is accomplished with a block and u-bolt configuration.
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2015-2019 | Chevrolet | Silverado 3500 HD | High Country |
| 2011-2019 | Chevrolet | Silverado 3500 HD | LT |
| 2011-2019 | Chevrolet | Silverado 3500 HD | LTZ |
| 2011-2019 | Chevrolet | Silverado 3500 HD | WT |
| 2015-2018 | GMC | Sierra 3500 HD | Base |
| 2011-2019 | GMC | Sierra 3500 HD | Denali |
| 2011-2019 | GMC | Sierra 3500 HD | SLE |
| 2011-2019 | GMC | Sierra 3500 HD | SLT |
| 2011-2014 | GMC | Sierra 3500 HD | WT |
- 2011-chevrolet-silverado-3500-hd-lt-esi6721464
- 2011-chevrolet-silverado-3500-hd-ltz-esi3559556
- 2011-chevrolet-silverado-3500-hd-wt-esi4269272
- 2011-gmc-sierra-3500-hd-denali-esi5329492
- 2011-gmc-sierra-3500-hd-sle-esi9904481
- 2011-gmc-sierra-3500-hd-slt-esi5091560
- 2011-gmc-sierra-3500-hd-wt-esi8527857
- 2012-chevrolet-silverado-3500-hd-lt-esi7952306
- 2012-chevrolet-silverado-3500-hd-ltz-esi8753121
- 2012-chevrolet-silverado-3500-hd-wt-esi8524922
- 2012-gmc-sierra-3500-hd-denali-esi7779724
- 2012-gmc-sierra-3500-hd-sle-esi5558066
- 2012-gmc-sierra-3500-hd-slt-esi5303151
- 2012-gmc-sierra-3500-hd-wt-esi9232280
- 2013-chevrolet-silverado-3500-hd-lt-esi7255487
- 2013-chevrolet-silverado-3500-hd-ltz-esi5913287
- 2013-chevrolet-silverado-3500-hd-wt-esi1173785
- 2013-gmc-sierra-3500-hd-denali-esi3049979
- 2013-gmc-sierra-3500-hd-sle-esi2393928
- 2013-gmc-sierra-3500-hd-slt-esi4684852
- 2013-gmc-sierra-3500-hd-wt-esi4993693
- 2014-chevrolet-silverado-3500-hd-lt-esi3289354
- 2014-chevrolet-silverado-3500-hd-ltz-esi5029652
- 2014-chevrolet-silverado-3500-hd-wt-esi9086628
- 2014-gmc-sierra-3500-hd-denali-esi3625998
- 2014-gmc-sierra-3500-hd-sle-esi1672924
- 2014-gmc-sierra-3500-hd-slt-esi5950929
- 2014-gmc-sierra-3500-hd-wt-esi5382266
- 2015-chevrolet-silverado-3500-hd-high-country-esi3515796
- 2015-chevrolet-silverado-3500-hd-lt-esi7882517
- 2015-chevrolet-silverado-3500-hd-ltz-esi7155074
- 2015-chevrolet-silverado-3500-hd-wt-esi9011656
- 2015-gmc-sierra-3500-hd-base-esi5174626
- 2015-gmc-sierra-3500-hd-denali-esi8579465
- 2015-gmc-sierra-3500-hd-sle-esi3689444
- 2015-gmc-sierra-3500-hd-slt-esi8107149
- 2016-chevrolet-silverado-3500-hd-high-country-esi8373134
- 2016-chevrolet-silverado-3500-hd-lt-esi9402841
- 2016-chevrolet-silverado-3500-hd-ltz-esi8218754
- 2016-chevrolet-silverado-3500-hd-wt-esi1181246
- 2016-gmc-sierra-3500-hd-base-esi8457705
- 2016-gmc-sierra-3500-hd-denali-esi3683648
- 2016-gmc-sierra-3500-hd-sle-esi4813683
- 2016-gmc-sierra-3500-hd-slt-esi5971553
- 2017-chevrolet-silverado-3500-hd-high-country-esi3432732
- 2017-chevrolet-silverado-3500-hd-lt-esi2404862
- 2017-chevrolet-silverado-3500-hd-ltz-esi9744951
- 2017-chevrolet-silverado-3500-hd-wt-esi3612296
- 2017-gmc-sierra-3500-hd-base-esi6819535
- 2017-gmc-sierra-3500-hd-denali-esi5302874
- 2017-gmc-sierra-3500-hd-sle-esi4095427
- 2017-gmc-sierra-3500-hd-slt-esi8178999
- 2018-chevrolet-silverado-3500-hd-high-country-esi9953003
- 2018-chevrolet-silverado-3500-hd-lt-esi9801189
- 2018-chevrolet-silverado-3500-hd-ltz-esi1783393
- 2018-chevrolet-silverado-3500-hd-wt-esi6452772
- 2018-gmc-sierra-3500-hd-base-esi4657169
- 2018-gmc-sierra-3500-hd-denali-esi6291957
- 2018-gmc-sierra-3500-hd-sle-esi3780368
- 2018-gmc-sierra-3500-hd-slt-esi5750773
- 2019-chevrolet-silverado-3500-hd-high-country-esi5065490
- 2019-chevrolet-silverado-3500-hd-lt-esi3594879
- 2019-chevrolet-silverado-3500-hd-ltz-esi1953871
- 2019-chevrolet-silverado-3500-hd-wt-esi8868366
- 2019-gmc-sierra-3500-hd-denali-esi1724491
- 2019-gmc-sierra-3500-hd-sle-esi7480206
- 2019-gmc-sierra-3500-hd-slt-esi6082524
- ClearanceItem:Y
- EPA:N/A
- fits_2011-2018`GMC`Sierra 3500 HD`SLT~2011-2014`GMC`Sierra 3500 HD`WT
- fits_2011-2019`Chevrolet`Silverado 3500 HD`WT~2018`GMC`Sierra 2500 HD`Base~2018`GMC`Sierra 2500 HD`Denali~2018`GMC`Sierra 2500 HD`SLE~2018`GMC`Sierra 2500 HD`SLT~2015-2018`GMC`Sierra 3500 HD`Base~2011-2018`GMC`Sierra 3500 HD`Denali
- fits_2018`Chevrolet`Silverado 2500 HD`High Country~2018`Chevrolet`Silverado 2500 HD`LT~2018`Chevrolet`Silverado 2500 HD`LTZ~2018`Chevrolet`Silverado 2500 HD`WT~2015-2019`Chevrolet`Silverado 3500 HD`High Country~2011-2019`Chevrolet`Silverado 3500 HD`LT
- LTL:N
- MPN:K1124DL
- Non-CARB:N
- Prop65:N
- SpecialOrder:Y
- Suspension>Lift Kits