Detroit Axle - Both (2) Front Lower Driver & Passenger Side Control Arm and Ball Joint Assembly - 10-Year Warranty for 06-11 Buick Lucerne - Cadillac DTS 10-Year Unlimited Warranty Complete Control Assembly Arm Pre-Assembled With Bushings, Mounts & Ball Joints (When Applicable) - No additional parts or tools required for installation Detroit Axle Suspension Control Arms are ready to meet the rigorous demands of todays foreign and domestic passenger cars, trucks and SUVs Detroit Axle is a leading supplier of ride control products to OE vehicle manufacturers Nationwide, that expertise translates to Detroit Axle's OE-quality