IHC Suspension is excited to introduce the most complete 1999-2006 (2007 Classic) 4/6 lowering kits in the market. IHC’s kit has all the features that most of our competitors just do not have. Our key features that differentiate us from the competition: Kill 2 birds with 1 stone. Not only are you lowering the truck but also replacing your 15 year old ball joints and bushing with IHC control arms. IHC integrates the notorious 1999-2006 Chevy LEAN! What is the Chevy lean? Most customers find out the hard way. 1999-2006 models were known for the driver’s side being 1 full inch lower which is most noticeable after lowering the pickup truck. IHC as a previous installation shop understood the frustration. When engineering, we designed and developed our 1999-2006 control arms with a correction for the Chevy lean in mind. That was a must have to make the pick-up truck sit level. HOW? Driver side springs pocket is not as deep as passenger side making all 4 corners sit level. IHC’s flip kit has the correct pinion angle built in so no need to use pinion shims. Weld on C-notch! All MADE IN USA! Manufactured in TEXAS! Lifetime warranty on all metal parts! IHC’s 1999-2006 (2007 Classic) 4/6 lowering kit consist of 5” lowering control arms (upper and lower) and a 1” inch rubber isolator to adjust the front end from 5” to 4”. The rear consists of a flip kit, drop shocks, and weld on under bed C-notch. All IHC suspension parts are fiber laser cut, CNC bend, and robotically welded for precise quality.