Delphi TC6303 Suspension Control Arm and Ball Joint Assembly - Front Left Lower

Delphi TC6303 Front Left Lower Control Arm

Delphi TC6303 is a front left lower suspension control arm and ball joint assembly built for direct replacement service on select Chevrolet, GMC, and Oldsmobile applications. It combines a steel control arm with a pre-greased ball joint and included mounting hardware for a service-ready repair on the front suspension.

Key Features

• Front left lower control arm and ball joint assembly
• Steel control arm construction with black finish
• Pre-greased for initial service readiness
• Threaded ball joint stud type
• Mounting hardware included
• Standard replacement grade
• No grease fitting included
• Non-adjustable design

Detailed Description

Delphi TC6303 is engineered for the front left lower position and is listed for 1995-2005 Chevrolet Blazer, 1995-2000 Chevrolet S10, 1995-2000 GMC Jimmy, 2001-2004 Chevrolet S10, 2001-2004 GMC Sonoma, 1995-2000 GMC Sonoma, 1996-2000 Oldsmobile Bravada, 2001-2002 Chevrolet Blazer, 2003-2005 Chevrolet Blazer, 2001 GMC Jimmy, 2002 GMC Jimmy, and 2001 Oldsmobile Bravada. This Delphi TC6303 control arm assembly is built with OE-focused dimensional and material analysis to support proper fitment between the replacement part and the original suspension layout. This part cross-references MOOG Chassis Products (e.g., RK620300, RK622213) for the same application.

What This Part Helps Address

• Front-end looseness from a worn lower control arm
• Clunking or knocking from a deteriorated ball joint
• Uneven tire wear related to suspension wear
• Steering instability on Chevrolet Blazer, S10, GMC Jimmy, and Sonoma models
• Suspension play at the front left lower corner

Installation Notes and Tips

Install in the front left lower suspension position only. Verify vehicle year, make, model, and notes before ordering, especially on Chevrolet Blazer ZR2 and S10/Sonoma applications with sway bar link mounts forward of the shock. Inspect related bushings, fasteners, and alignment settings during replacement. An alignment is recommended after suspension work.

Quality Assurance

Delphi subjects steering and suspension components to temperature extremes below -40 degrees C and above 120 degrees C, along with extended salt-spray exposure, to evaluate durability and corrosion resistance. The brand also applies OE-level dimensional and material analysis to support consistent replacement quality.