Detroit Axle Complete Power Steering Rack and Pinion Assembly for 2006-2008 Hummer H3 w/14mm Tierods With 14mm Inner Tie Rod Threads - Complete Power Steering Rack & Pinion Assembly To Activate your Lifetime Warranty; you must send in your core unit. Call us when you order to get a return shipping label for your old unit. New Oil and Lip Seals installed to ensure quality performance, Hydraulically Pressure Tested to Ensure Internal By-Pass for Both High & Low Pressure Tie Rod Load, Road Simulated for Proper Functioning