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-esi1849223
- 2011-chevrolet-silverado-3500-hd-ltz-esi5812036
- 2011-chevrolet-silverado-3500-hd-wt-esi3575365
- 2011-gmc-sierra-3500-hd-denali-esi7183537
- 2011-gmc-sierra-3500-hd-sle-esi7825395
- 2011-gmc-sierra-3500-hd-slt-esi2227304
- 2011-gmc-sierra-3500-hd-wt-esi4247654
- 2012-chevrolet-silverado-3500-hd-lt-esi2163161
- 2012-chevrolet-silverado-3500-hd-ltz-esi4984067
- 2012-chevrolet-silverado-3500-hd-wt-esi9713993
- 2012-gmc-sierra-3500-hd-denali-esi9088885
- 2012-gmc-sierra-3500-hd-sle-esi8815837
- 2012-gmc-sierra-3500-hd-slt-esi2566275
- 2012-gmc-sierra-3500-hd-wt-esi5443082
- 2013-chevrolet-silverado-3500-hd-lt-esi7737246
- 2013-chevrolet-silverado-3500-hd-ltz-esi4855309
- 2013-chevrolet-silverado-3500-hd-wt-esi1625383
- 2013-gmc-sierra-3500-hd-denali-esi5228780
- 2013-gmc-sierra-3500-hd-sle-esi5232652
- 2013-gmc-sierra-3500-hd-slt-esi6745438
- 2013-gmc-sierra-3500-hd-wt-esi3237677
- 2014-chevrolet-silverado-3500-hd-lt-esi3820294
- 2014-chevrolet-silverado-3500-hd-ltz-esi5974068
- 2014-chevrolet-silverado-3500-hd-wt-esi6328607
- 2014-gmc-sierra-3500-hd-denali-esi1164860
- 2014-gmc-sierra-3500-hd-sle-esi9299311
- 2014-gmc-sierra-3500-hd-slt-esi5567883
- 2014-gmc-sierra-3500-hd-wt-esi1477792
- 2015-chevrolet-silverado-3500-hd-high-country-esi9666263
- 2015-chevrolet-silverado-3500-hd-lt-esi4636640
- 2015-chevrolet-silverado-3500-hd-ltz-esi3580747
- 2015-chevrolet-silverado-3500-hd-wt-esi1503652
- 2015-gmc-sierra-3500-hd-base-esi2862207
- 2015-gmc-sierra-3500-hd-denali-esi6917105
- 2015-gmc-sierra-3500-hd-sle-esi3494694
- 2015-gmc-sierra-3500-hd-slt-esi3907957
- 2016-chevrolet-silverado-3500-hd-high-country-esi7808885
- 2016-chevrolet-silverado-3500-hd-lt-esi6218694
- 2016-chevrolet-silverado-3500-hd-ltz-esi7156251
- 2016-chevrolet-silverado-3500-hd-wt-esi2304020
- 2016-gmc-sierra-3500-hd-base-esi6123792
- 2016-gmc-sierra-3500-hd-denali-esi2780782
- 2016-gmc-sierra-3500-hd-sle-esi3160514
- 2016-gmc-sierra-3500-hd-slt-esi1543983
- 2017-chevrolet-silverado-3500-hd-high-country-esi6154803
- 2017-chevrolet-silverado-3500-hd-lt-esi8966332
- 2017-chevrolet-silverado-3500-hd-ltz-esi1222361
- 2017-chevrolet-silverado-3500-hd-wt-esi5810969
- 2017-gmc-sierra-3500-hd-base-esi8950530
- 2017-gmc-sierra-3500-hd-denali-esi8371368
- 2017-gmc-sierra-3500-hd-sle-esi9128461
- 2017-gmc-sierra-3500-hd-slt-esi1120534
- 2018-chevrolet-silverado-3500-hd-high-country-esi6032964
- 2018-chevrolet-silverado-3500-hd-lt-esi1024486
- 2018-chevrolet-silverado-3500-hd-ltz-esi4548450
- 2018-chevrolet-silverado-3500-hd-wt-esi5863421
- 2018-gmc-sierra-3500-hd-base-esi6394681
- 2018-gmc-sierra-3500-hd-denali-esi5925619
- 2018-gmc-sierra-3500-hd-sle-esi5661658
- 2018-gmc-sierra-3500-hd-slt-esi3883187
- 2019-chevrolet-silverado-3500-hd-high-country-esi2857747
- 2019-chevrolet-silverado-3500-hd-lt-esi9671931
- 2019-chevrolet-silverado-3500-hd-ltz-esi3558479
- 2019-chevrolet-silverado-3500-hd-wt-esi7612777
- 2019-gmc-sierra-3500-hd-denali-esi4340704
- 2019-gmc-sierra-3500-hd-sle-esi9541976
- 2019-gmc-sierra-3500-hd-slt-esi5145014
- 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:K1123
- Non-CARB:N
- Prop65:Y
- SpecialOrder:Y
- Suspension>Lift Kits