Dorman 540-744 Suspension Stabilizer Bar Bushing Kit - Front To Frame

Dorman 540-744 Stabilizer Bar Bushings

Dorman 540-744 is a suspension stabilizer bar bushing kit made for specific Chevrolet Trailblazer, GMC Envoy, Isuzu Ascender, and Oldsmobile Bravada applications. It is precision-engineered and tested as a standard replacement for the original equipment bushing on the front-to-frame sway bar mount.

Key Features

• Rubber and elastomer construction for suspension service
• Inside diameter: 1.72 in.
• Outside diameter: 2.89 in.
• Width: 2.89 in.
• Assembled length: 1.46 in.
• Standard replacement grade for OE-style fitment
• No grease fitting included
• No bracket included

Detailed Description

This Dorman stabilizer bar bushing kit, part number 540-744, is built for front-to-frame mounting on 2002-2003 Chevrolet Trailblazer, 2002-2003 GMC Envoy, 2003 Isuzu Ascender, and 2002-2003 Oldsmobile Bravada models with a 43.70 mm diameter bar. The rubber construction helps restore the stabilizer bar’s mounting interface, supporting consistent suspension movement and reducing unwanted play at the frame connection. This part cross-references MOOG Chassis Products K80772 for the same application.

What It Helps Address

• Clunking or knocking from the front suspension
• Excess movement at the stabilizer bar frame mount
• Worn or cracked sway bar bushings
• Loose-feeling front-end handling caused by bushing wear
• Noise during cornering or over uneven pavement

Installation Notes and Tips

Verify the stabilizer bar diameter before installation; this application is specified for a 43.70 mm diameter bar. Confirm front-to-frame placement and compare the original bushing dimensions to the new part before service. Clean the mounting area and inspect the stabilizer bar and related hardware for wear before reassembly.

Quality Assurance

Dorman manufactures this part as a precision-engineered, rigorously tested replacement for the original equipment bushing on the listed vehicles. Part number 540-744 is built to standard replacement specifications for direct service use.