3.5-Inch Cast Steel LCA Lift Kit for 2014–2019 Silverado 1500
- For 2014–2019 Chevy Silverado 1500 and GMC Sierra 1500 4WD with cast steel lower control arms
- Knuckle lift keeps the factory struts and springs in service
- Denali, Denali Ultimate, and eAssist trucks are excluded; aftermarket control arms will not work
- Factory wheels need a 0.25-inch spacer, part 1065
- Cutting and grinding required — downloadable installation guide available
The Trail Fortress check
Will it fit your truck?
✓ Fits
+ 1 more applications
✕ Does not fit
- Denali or Denali Ultimate models
- Models with eAssist (ECO Hybrid) package
Requires cutting and grinding. Does NOT work with aftermarket control arms. New lift block replaces the factory-equipped block. To ensure proper fit please confirm if the stock control arms are cast aluminum cast steel or stamped steel. For a visual please click here. To ensure adequate clearance when lowering the differential models equipped with a mass damper on the front differential must be removed. To retain factory wheels a 0.25" wheel spacer will be required SKU: 1065. Fitment on this page is based on the manufacturer’s application data.
About this kit
3.5-Inch Cast Steel LCA Lift Kit, fitment-checked
The cast steel arm version of Rough Country's 3.5-inch knuckle lift for 2014–2019 Chevy Silverado 1500 and GMC Sierra 1500 4WD. Check whether your truck has cast steel, cast aluminum, or stamped steel lower control arms before ordering — this kit is cut for cast steel. Denali, Denali Ultimate, and eAssist trucks are excluded, and the factory wheels need a 0.25-inch spacer, part 1065.
This 3.5-inch lift kit covers 2014–2019 Chevy Silverado 1500 and GMC Sierra 1500 4WD trucks fitted with cast steel lower control arms, along with the 2019 Silverado 1500 LD and Sierra 1500 Limited. Knuckles do the lifting, which leaves the factory struts and springs in place and raises the CV axle away from the lower arm; a fabricated rear block replaces the factory one. Identify the lower control arm material first — cast aluminum and stamped steel arms take a different kit. Cutting and grinding are required, and a downloadable installation guide is available.
What’s in the box
Kit contents
- 1× 3.5 Inch Lift Kit 199.20
- 1× 2014-16.5 3.5in Cast Steel Lca Knuckles 12430BOX1
Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 12430 kit fits the vehicles shown in the fitment section above.
Specifications
Specs
| Brand | Rough Country |
| Part number | 12430 |
| UPC / GTIN | 00843030153946 |
| Lift height | 3.5 in |
| Shipping weight | 87.5 lb |
| Country of origin | US |
| Category | Suspension & Lift Kits › Lift Kits |
| Installation guide | Downloadable PDF |
Why buy here