Fabtech's 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:
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2015-2018 | Chevrolet | Silverado 2500 HD | High Country |
| 2011-2018 | Chevrolet | Silverado 2500 HD | LT |
| 2011-2018 | Chevrolet | Silverado 2500 HD | LTZ |
| 2011-2018 | Chevrolet | Silverado 2500 HD | WT |
| 2018 | Chevrolet | Silverado 3500 HD | High Country |
| 2018 | Chevrolet | Silverado 3500 HD | LT |
| 2018 | Chevrolet | Silverado 3500 HD | LTZ |
| 2018 | Chevrolet | Silverado 3500 HD | WT |
| 2015-2019 | GMC | Sierra 2500 HD | Base |
| 2011-2019 | GMC | Sierra 2500 HD | Denali |
| 2011-2019 | GMC | Sierra 2500 HD | SLE |
| 2011-2019 | GMC | Sierra 2500 HD | SLT |
| 2011-2014 | GMC | Sierra 2500 HD | WT |
| 2018-2019 | GMC | Sierra 3500 HD | Base |
| 2018 | GMC | Sierra 3500 HD | Denali |
| 2018 | GMC | Sierra 3500 HD | SLE |
| 2018 | GMC | Sierra 3500 HD | SLT |
- 2011-chevrolet-silverado-2500-hd-lt-esi6955644
- 2011-chevrolet-silverado-2500-hd-ltz-esi5991998
- 2011-chevrolet-silverado-2500-hd-wt-esi9054501
- 2011-gmc-sierra-2500-hd-denali-esi5056532
- 2011-gmc-sierra-2500-hd-sle-esi3226770
- 2011-gmc-sierra-2500-hd-slt-esi9460445
- 2011-gmc-sierra-2500-hd-wt-esi9920543
- 2012-chevrolet-silverado-2500-hd-lt-esi1098284
- 2012-chevrolet-silverado-2500-hd-ltz-esi7322322
- 2012-chevrolet-silverado-2500-hd-wt-esi1089801
- 2012-gmc-sierra-2500-hd-denali-esi7138966
- 2012-gmc-sierra-2500-hd-sle-esi6709506
- 2012-gmc-sierra-2500-hd-slt-esi1724272
- 2012-gmc-sierra-2500-hd-wt-esi1130877
- 2013-chevrolet-silverado-2500-hd-lt-esi5307708
- 2013-chevrolet-silverado-2500-hd-ltz-esi7954352
- 2013-chevrolet-silverado-2500-hd-wt-esi1162464
- 2013-gmc-sierra-2500-hd-denali-esi8459585
- 2013-gmc-sierra-2500-hd-sle-esi9874969
- 2013-gmc-sierra-2500-hd-slt-esi4160748
- 2013-gmc-sierra-2500-hd-wt-esi6351769
- 2014-chevrolet-silverado-2500-hd-lt-esi4873699
- 2014-chevrolet-silverado-2500-hd-ltz-esi1106165
- 2014-chevrolet-silverado-2500-hd-wt-esi3562066
- 2014-gmc-sierra-2500-hd-denali-esi7717200
- 2014-gmc-sierra-2500-hd-sle-esi6517209
- 2014-gmc-sierra-2500-hd-slt-esi9448312
- 2014-gmc-sierra-2500-hd-wt-esi1379654
- 2015-chevrolet-silverado-2500-hd-high-country-esi1372648
- 2015-chevrolet-silverado-2500-hd-lt-esi5828503
- 2015-chevrolet-silverado-2500-hd-ltz-esi9220396
- 2015-chevrolet-silverado-2500-hd-wt-esi8018866
- 2015-gmc-sierra-2500-hd-base-esi1431806
- 2015-gmc-sierra-2500-hd-denali-esi6490355
- 2015-gmc-sierra-2500-hd-sle-esi5692276
- 2015-gmc-sierra-2500-hd-slt-esi3680206
- 2016-chevrolet-silverado-2500-hd-high-country-esi8356428
- 2016-chevrolet-silverado-2500-hd-lt-esi6773078
- 2016-chevrolet-silverado-2500-hd-ltz-esi8159496
- 2016-chevrolet-silverado-2500-hd-wt-esi2999284
- 2016-gmc-sierra-2500-hd-base-esi7316929
- 2016-gmc-sierra-2500-hd-denali-esi5148227
- 2016-gmc-sierra-2500-hd-sle-esi9939839
- 2016-gmc-sierra-2500-hd-slt-esi2811616
- 2017-chevrolet-silverado-2500-hd-high-country-esi4757556
- 2017-chevrolet-silverado-2500-hd-lt-esi3508391
- 2017-chevrolet-silverado-2500-hd-ltz-esi2313844
- 2017-chevrolet-silverado-2500-hd-wt-esi8958360
- 2017-gmc-sierra-2500-hd-base-esi2311033
- 2017-gmc-sierra-2500-hd-denali-esi9442299
- 2017-gmc-sierra-2500-hd-sle-esi1148690
- 2017-gmc-sierra-2500-hd-slt-esi5483125
- 2018-chevrolet-silverado-2500-hd-high-country-esi5355290
- 2018-chevrolet-silverado-2500-hd-lt-esi8992260
- 2018-chevrolet-silverado-2500-hd-ltz-esi6639659
- 2018-chevrolet-silverado-2500-hd-wt-esi7089384
- 2018-chevrolet-silverado-3500-hd-high-country-esi6554495
- 2018-chevrolet-silverado-3500-hd-lt-esi3078897
- 2018-chevrolet-silverado-3500-hd-ltz-esi4502950
- 2018-chevrolet-silverado-3500-hd-wt-esi9884223
- 2018-gmc-sierra-2500-hd-base-esi5537356
- 2018-gmc-sierra-2500-hd-denali-esi3614172
- 2018-gmc-sierra-2500-hd-sle-esi7162694
- 2018-gmc-sierra-2500-hd-slt-esi5895709
- 2018-gmc-sierra-3500-hd-base-esi2682518
- 2018-gmc-sierra-3500-hd-denali-esi4764965
- 2018-gmc-sierra-3500-hd-sle-esi5097745
- 2018-gmc-sierra-3500-hd-slt-esi4303114
- 2019-gmc-sierra-2500-hd-base-esi4066028
- 2019-gmc-sierra-2500-hd-denali-esi7664423
- 2019-gmc-sierra-2500-hd-sle-esi2030700
- 2019-gmc-sierra-2500-hd-slt-esi5173873
- 2019-gmc-sierra-3500-hd-base-esi2187113
- EPA:N/A
- fits_2015-2018`Chevrolet`Silverado 2500 HD`High Country~2011-2018`Chevrolet`Silverado 2500 HD`LT~2011-2018`Chevrolet`Silverado 2500 HD`LTZ~2011-2018`Chevrolet`Silverado 2500 HD`WT~2018`Chevrolet`Silverado 3500 HD`High Country
- fits_2018`Chevrolet`Silverado 3500 HD`LTZ~2018`Chevrolet`Silverado 3500 HD`WT~2015-2019`GMC`Sierra 2500 HD`Base~2011-2019`GMC`Sierra 2500 HD`Denali~2011-2019`GMC`Sierra 2500 HD`SLE~2011-2019`GMC`Sierra 2500 HD`SLT~2011-2014`GMC`Sierra 2500 HD`WT
- fits_2018`GMC`Sierra 3500 HD`Denali~2018`GMC`Sierra 3500 HD`SLE~2018`GMC`Sierra 3500 HD`SLT
- LTL:N
- MPN:K1121
- Non-CARB:N
- Prop65:Y
- SpecialOrder:N
- Suspension>Lift Kits