J.C. Whitney SET-JF28230030-2 Front Lower Ball Joint Set RH & LH OEM Replacement GS40521

The J.C. Whitney SET-JF28230030-2 is a front lower ball joint set designed as a direct OEM replacement for the Ford Edge and Lincoln MKX. This set includes both the driver-side (LH) and passenger-side (RH) front lower ball joints, allowing for a complete front suspension restoration in a single purchase.

Key Features:

• Replaces OEM part number GS40521
• Set includes one left-hand (LH) and one right-hand (RH) front lower ball joint
• Direct-fit OEM replacement — no modifications required
• Front lower position for accurate suspension geometry and steering control
• Restores proper pivot function between the lower control arm and steering knuckle
• Designed to meet or exceed original equipment specifications

Ball joints are a critical suspension component, serving as the pivot point between the lower control arm and the steering knuckle. Worn or damaged ball joints can cause uneven tire wear, loose or wandering steering, and clunking noises over bumps. Replacing them in pairs ensures balanced suspension performance on both sides of the vehicle.