QA1 14-18 GM 1500 Spindle Pair 2in Drop For Steel & Alum

QA1 2-Inch Drop Spindles for 2014-2018 GM Truck 2WD/4WD with Aluminum or Stamped Control Arms. WILL NOT WORK ON APPLICATIONS THAT WERE ORGINIALLY EQUIPPED WITH CAST STEEL CONTROL ARMS. QA1 2\" drop spindles offer an easy, bolt-in solution to lower the front of your 2007 to 2018 Silverado or Sierra 1500. These spindles are compatible with both 2WD and 4WD applications in all cab configurations. The factory control arm construction will need to be determined to know which spindle fits your truck. These trucks came with either cast steel, aluminum, or stamped steel control arms. Verify your control arm construction before purchasing. FITMENT NOTES: SKU 9056-112 will work on 2007-2016 that came from factory with Cast Steel Control arms and require minimum of 17\" diameter wheels. SKU 9056-113 will work on 2014-2018 trucks that came from factory with Stamped Steel Or Aluminum control arms and require minimum of 18\" diameter wheels. Drop spindle will affect alignment and is required to be used with drop coilovers. QA1 strongly recommends to pair these spindles with the QA1 Front Pro Coils for best performance and adjustment range.