Information?? Compatible With: Compatible With 2001-2007 Peterbilt 378;2001-2007 Peterbilt 379;2006-2012 Peterbilt 386;2008-2013 Peterbilt 388;2008-2013 Peterbilt 389 High-Quality: 2 Inch Billet Aluminum Clutch Extender Fit Is Made Of High-Quality Aluminum Material By Cnc Lathe. Function: 2 Inch Billet Aluminum Clutch Extender Changes The Position Angle Of The Pedal To Help You Better Disengage The Clutch. Increases Angle Of Foot In Relation To The Floor. Improves Driver Ergonomics. Less Strain On Ankle Easy To Install-:Peterbilt Clutch Pedal Extender Is Easy And Quick To Install. Simply Remove And Replace The Old Or Damaged Parts, Which Can Be Completed In 10 Minutes, Improving The Time Efficiency.Compatibility Chart: For 2001-2007 Peterbilt 378 For 2001-2007 Peterbilt 379 For 2006-2012 Peterbilt 386 For 2008-2013 Peterbilt 388 For 2008-2013 Peterbilt 389Package Content?? 1 x 2 Inch Billet Aluminum Clutch Extender??W/o Product Instruction??