Leaf Spring Shackle Kit – Rear Position – Fits GM & Isuzu Trucks improving suspension performance and extending

improving suspension performance and extending component life

The Freightliner Spring Insulator Cap is a critical suspension component that cushions the contact between the spring and the frame

This kit includes a durable wear pad and essential mounting hardware to absorb shocks and reduce friction within the suspension hanger assembly

30SQ4525 (Mack)

Dorman 722-029

Leaf Spring Shackle Kit – Rear Position – Fits GM & Isuzu Trucks improving suspension performance and extendingThe Rear Leaf Spring Shackle Kit is a heavy duty suspension repair component designed for GM and Isuzu vehicles. This kit restores the proper connection between the leaf spring and the vehicle frame, maintaining suspension geometry and enhancing load stability. Ideal for rear suspension servicing, it helps reduce stress and wear on critical parts, delivering smoother handling and extended part life. OEM Cross References: M1755, 15665302, K150382, 722