The Automann M1500 side bar (also known as a spring shackle) is a vital suspension component for heavy-duty trucks—especially Peterbilt models. Built from durable steel, it ensures smooth axle movement and proper alignment under load, critical for safety and performance.
Overall Length (A): 6.000 in
Width (B): 2.000 in
Center-to-Center (eye-to-eye, C): 3.500 in
Height (D): 1.125 in
Eye/Bushing Inner Hole (E): 1.250 in ID
Lock Hole (F): 0.500 in
These precision measurements make the M1500 a direct fit for many Peterbilt models with corresponding leaf spring configurations.
Automann: M1500
ATRO: SK75‑10200
ATMM1500
Peterbilt: 02‑01784, 02‑01783
Dayton: 330‑186
Paccar: 16537AA
Heavy-Duty Steel Construction: Designed for durability in rugged conditions.
OEM Precision Fit: Adheres to exact Peterbilt and Paccar specifications to ensure correct alignment and safe suspension travel.
Easy Installation: Drop-in replacement—no modifications required.
Reliability: Consistent performance dive after drive, reducing downtime and maintenance.
Specifically engineered for:
Peterbilt standard-leaf spring suspensions
Trucks requiring a 3.5″ C‑to‑C shackle eye alignment
Ideal replacement for worn or damaged shackles—restoring factory suspension function.
Trusted OEM-grade quality: Meets or exceeds factory specifications.
Broad cross-referencing makes fitment easy: Compatible with multiple brands and part numbers.
Enhanced safety and ride control: Precise fitment helps maintain proper ride height and direction under load.
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