Spacer Block 388‑729 – Fits Mack Trucks Heavy‑Duty Suspension Component freight Made from high-strength steel and

Made from high-strength steel and precision-machined to OEM specifications

Chrysler 52037881AB

The Rear of Rear Leaf Spring Shackle Kit is a heavy-duty suspension component engineered for Ford F-Series Super Duty trucks

Key Features:• Application: Front of front spring assemblies• Design: Threaded pin with external grease fitting (G1803)• Bushing Fit: Compatible with MTB160 threaded bushings• Material: Heat-treated steel for strength and wear resistance• Function: Reduces movement and vibration in suspension

and extends the life of the suspension system

Spacer Block 388‑729 – Fits Mack Trucks Heavy‑Duty Suspension Component freight Made from high-strength steel andThe Mack Insulator Spacer Block is a rugged suspension component designed to provide proper spacing and vibration isolation within Mack truck suspensions. It acts as a buffer between major structural elements to reduce stress and prevent metal to metal contact. This block enhances ride comfort and protects other suspension components from premature wear. OEM Cross References: E31662, 338729, M878, E3689, 13QK246, 25157862 Key Features: Application: