Fabtechs new 4 crossmember 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-esi6562274
- 2011-chevrolet-silverado-3500-hd-ltz-esi2901401
- 2011-chevrolet-silverado-3500-hd-wt-esi6939140
- 2011-gmc-sierra-3500-hd-denali-esi3225192
- 2011-gmc-sierra-3500-hd-sle-esi9661619
- 2011-gmc-sierra-3500-hd-slt-esi6406539
- 2011-gmc-sierra-3500-hd-wt-esi4101406
- 2012-chevrolet-silverado-3500-hd-lt-esi9659128
- 2012-chevrolet-silverado-3500-hd-ltz-esi3081601
- 2012-chevrolet-silverado-3500-hd-wt-esi4983214
- 2012-gmc-sierra-3500-hd-denali-esi9813245
- 2012-gmc-sierra-3500-hd-sle-esi5294411
- 2012-gmc-sierra-3500-hd-slt-esi2566705
- 2012-gmc-sierra-3500-hd-wt-esi6091285
- 2013-chevrolet-silverado-3500-hd-lt-esi3802796
- 2013-chevrolet-silverado-3500-hd-ltz-esi4947639
- 2013-chevrolet-silverado-3500-hd-wt-esi1699768
- 2013-gmc-sierra-3500-hd-denali-esi7289348
- 2013-gmc-sierra-3500-hd-sle-esi2311449
- 2013-gmc-sierra-3500-hd-slt-esi4603708
- 2013-gmc-sierra-3500-hd-wt-esi3661602
- 2014-chevrolet-silverado-3500-hd-lt-esi7733195
- 2014-chevrolet-silverado-3500-hd-ltz-esi8355374
- 2014-chevrolet-silverado-3500-hd-wt-esi6547499
- 2014-gmc-sierra-3500-hd-denali-esi5977043
- 2014-gmc-sierra-3500-hd-sle-esi7454660
- 2014-gmc-sierra-3500-hd-slt-esi6490708
- 2014-gmc-sierra-3500-hd-wt-esi9479123
- 2015-chevrolet-silverado-3500-hd-high-country-esi9898935
- 2015-chevrolet-silverado-3500-hd-lt-esi5084881
- 2015-chevrolet-silverado-3500-hd-ltz-esi9949542
- 2015-chevrolet-silverado-3500-hd-wt-esi4292346
- 2015-gmc-sierra-3500-hd-base-esi1691452
- 2015-gmc-sierra-3500-hd-denali-esi3614779
- 2015-gmc-sierra-3500-hd-sle-esi1474184
- 2015-gmc-sierra-3500-hd-slt-esi6099743
- 2016-chevrolet-silverado-3500-hd-high-country-esi1278760
- 2016-chevrolet-silverado-3500-hd-lt-esi6971668
- 2016-chevrolet-silverado-3500-hd-ltz-esi2815932
- 2016-chevrolet-silverado-3500-hd-wt-esi8225109
- 2016-gmc-sierra-3500-hd-base-esi7626186
- 2016-gmc-sierra-3500-hd-denali-esi3387213
- 2016-gmc-sierra-3500-hd-sle-esi8005548
- 2016-gmc-sierra-3500-hd-slt-esi7624057
- 2017-chevrolet-silverado-3500-hd-high-country-esi3176636
- 2017-chevrolet-silverado-3500-hd-lt-esi6730780
- 2017-chevrolet-silverado-3500-hd-ltz-esi9137718
- 2017-chevrolet-silverado-3500-hd-wt-esi7058935
- 2017-gmc-sierra-3500-hd-base-esi2347477
- 2017-gmc-sierra-3500-hd-denali-esi6105433
- 2017-gmc-sierra-3500-hd-sle-esi8321912
- 2017-gmc-sierra-3500-hd-slt-esi3752077
- 2018-chevrolet-silverado-3500-hd-high-country-esi3550343
- 2018-chevrolet-silverado-3500-hd-lt-esi3480051
- 2018-chevrolet-silverado-3500-hd-ltz-esi8060469
- 2018-chevrolet-silverado-3500-hd-wt-esi5015248
- 2018-gmc-sierra-3500-hd-base-esi8572027
- 2018-gmc-sierra-3500-hd-denali-esi4970480
- 2018-gmc-sierra-3500-hd-sle-esi9901802
- 2018-gmc-sierra-3500-hd-slt-esi3095637
- 2019-chevrolet-silverado-3500-hd-high-country-esi7431176
- 2019-chevrolet-silverado-3500-hd-lt-esi6803551
- 2019-chevrolet-silverado-3500-hd-ltz-esi9547701
- 2019-chevrolet-silverado-3500-hd-wt-esi7876145
- 2019-gmc-sierra-3500-hd-denali-esi5593116
- 2019-gmc-sierra-3500-hd-sle-esi2908947
- 2019-gmc-sierra-3500-hd-slt-esi6369316
- ClearanceItem:N
- 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:K1123M
- Non-CARB:N
- Prop65:Y
- SpecialOrder:Y
- Suspension>Lift Kits