Dorman 544-789 Alignment Shim

Alignment Shim for Tandem Axle Applications

Dorman 544-789 is a steel alignment shim made for specific heavy-duty trucks with tandem axle setups. It is precision-engineered and tested as a direct replacement for the original equipment part on listed applications.

• Steel construction for durable service in suspension alignment use.
• Rectangular shim design with a 1/16-degree increment for fine adjustment.
• Gold finish and compact dimensions for controlled fitment in the assembly.
• Fits a wide range of Freightliner and International heavy-duty truck models with tandem axle configurations.

Detailed Product Information

This Dorman alignment shim, part number 544-789, is used to fine-tune suspension geometry on heavy-duty trucks that require precise alignment correction. The shim’s steel construction, rectangular shape, and 1/16-degree increment help support accurate adjustment during service work. Fitment includes Freightliner 114SD, Cascadia, Columbia, Century Class, FLD120, and FLD112 applications, along with International 4300, 4400, ProStar, 7400, 7600, 9900i, and related models. This part number 544-789 also cross-references K8926 for the same application.

Compatible With Freightliner and International tandem axle trucks, this shim is relevant for alignment service where small changes in angle are needed to restore proper suspension setup. The part number 544-789 is listed across many commercial truck platforms, including Freightliner Cascadia and International ProStar, making it a practical replacement for service bays working on mixed fleets.

What This Part Helps Address

• Uneven suspension alignment after service or component replacement.
• Need for small angle correction in tandem axle setups.
• Restoring original alignment geometry on listed heavy-duty trucks.
• Reducing the need for improvised spacing during suspension adjustment.

Installation Notes and Tips

Verify the vehicle’s tandem axle configuration and match the shim to the listed application before installation. Use the specified alignment procedure for the truck platform being serviced, and confirm final settings after assembly. Because fitment varies by model and year, confirm the exact application for Freightliner and International trucks before ordering.

Quality Assurance

Dorman states that this alignment shim is precision-engineered and rigorously tested to replace the original equipment part on specific vehicles.