Detroit Axle - Complete Power Steering Gear Box Assembly 3-SPLINE - for Cadillac Escalade, Chevrolet Silverado 1500 & Tahoe, GMC Sierra 1500 & Yukon Trucks - 3 SPLINE 3-Spline Gearbox - Made in Detroit, USA - Lifetime Warranty Guarantee Complete Power Steering Gear Box Assembly 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