CV Axle AssemblyFitmentCompatible with: 2002-05 Ford Explorer with Advance Trac Rear Driver SideCompatible with: 2006-10 Ford Explorer Rear Driver SideCompatible with: 2007-10 Ford Explorer Sport Trac Rear Driver SideCompatible with: 2006-10 Mercury Mountaineer Rear Driver SideCompatible with: 2003-05 Mercury Mountaineer with Advance Trac Rear Driver SideCompatible with: 2003-05 Lincoln Aviator with Advance Trac Rear Driver SideProduct AttributesOutboard Spline Quantity: 29Inboard Spline Quantity: 31Compressed Length: 31.97 inABS Tone Ring Tooth Quantity: 54Compressed Length: 812 mmInboard Joint Type: MaleGrade Type: RegularABS Tone Ring Included: YesProduct Features 100% New: Manufactured to tighter tolerances for extended service life Neoprene Boots: Improved durability compared to stock material Moly Greased: Specifically-designed grease shield to reduce premature wear Application Specific Design: No modificationItem DetailsTRQ CV (constant velocity) drive axles are manufactured using premium raw materials designed to restore original performance. TRQ CV drive axles are new, so there is no core charge with your TRQ purchase. TRQ-designed drive axles utilize neoprene boots, moly grease, stainless steel clamps, and heat-treated ball tracks to ensure extended service life. Each TRQ axle is application-specific so each spline and thread will mate properly for a seamless fit. All products are fit and road-tested in our Massachusetts R&D facility to ensure we deliver on our promise of Trusted Reliable Quality.Reference NumbersCARDONE New: 66-2193CARDONE: 662193Ford: 2L2Z4K138BA, 2L2Z4K139BA, 6L2Z4K139A, 6L2Z4K139B, 7L2Z4K139AGSP: NCV11119Lincoln: 2L2Z4K139BAMercury: 2L2Z4K139BA, 7L2Z4K139A