SKP SK6129 Suspension Ball Joint - Front Lower

Front Lower Ball Joint for Heavy-Duty GM Vans and Trucks

SKP SK6129 is a front lower suspension ball joint for select Chevrolet and GMC heavy-duty applications. It is built for vehicles that use a 58.6 mm housing press-fit diameter and an 11/16 in. stud thread diameter, with a powdered-metal gusher bearing that allows grease to penetrate the bearing surfaces.

Compatible With Chevrolet P30, Chevrolet G30, GMC P3500, GMC G3500, and other listed front lower applications across 1971-1999 model years. SK6129 is a direct-fit suspension service part for restoring steering and front-end articulation on the correct platform.

Key Features

• Front lower suspension ball joint
• Housing press-fit diameter: 58.6 mm
• Stud thread diameter: 11/16 in.
• Powdered-metal gusher bearing for grease flow through the bearing surfaces
• Fits select Chevrolet and GMC vans, cutaways, and heavy-duty chassis applications
• Cross-references Mevotech Supreme MK6129T and MOOG Chassis Products K6129T for the same application

Detailed Description

SKP SK6129 is specified for front lower suspension service on a wide range of Chevrolet and GMC platforms, including Chevrolet P30, Chevrolet G30, GMC P3500, and GMC G3500 applications. It also covers additional listed C-series, R-series, and van fitments where the front lower joint uses the same press-fit and stud dimensions. For buyers searching for a front lower ball joint for Chevrolet P30 or GMC P3500, SK6129 provides the fitment details needed to match the original suspension geometry.

This part cross-references Mevotech Supreme MK6129T and MOOG Chassis Products K6129T for the same application. The SK6129 part number is also associated with OE-style interchange numbers 9751952, 9755486, 9760164, 9760165, 9766424, B6129, and K6129.

What It Helps Address

• Front-end looseness or play at the lower ball joint
• Clunking or popping from the front suspension
• Uneven tire wear caused by worn steering and suspension joints
• Imprecise steering response on Chevrolet and GMC heavy-duty platforms
• Service replacement for worn front lower ball joints on listed applications

Installation Notes and Tips

Verify the housing press-fit diameter and stud thread diameter before installation. This part is listed for front lower positions only, so confirm the vehicle year, make, model, and suspension configuration against the fitment data before ordering. Some listed GMC van applications note front disc brake configuration in the fitment details.

Quality Assurance

SKP SK6129 is built to match the specified dimensions and application requirements for the listed Chevrolet and GMC vehicles. Confirmed fitment includes 1971-1999 model years across the vehicles shown in the fitment table.