Mack Trunnion Saddle – 4" Shaft, 5" Spring – Fits SS58 Camelback Suspension freight

Mack Trunnion Saddle – 4" Shaft, 5" Spring – Fits SS58 Camelback Suspension freightThe Mack Trunnion Saddle with 4" shaft and 5" spring support is a critical heavy duty suspension component used in Mack SS58 Camelback rear axle systems. Also known as a Trunnion Seat, this part is engineered to hold the trunnion shaft firmly in place while allowing for controlled articulation and weight distribution. Built for high load environments, this saddle improves stability and extends the life of your suspension system. OEM Cross References:

including the SS44 and Camelback series

Ideal for OE replacement or chassis repair jobs

Key Features:• Fits Kenworth and Peterbilt rear suspension systems• Includes pin for complete installation• Reduces vibration and supports stable suspension geometry• Heavy-duty rubber construction• OEM-quality replacement for multiple part numbers

This bushing effectively absorbs road shock and minimizes vibration transfer between the torque rod and bracketry

This pin provides a secure connection between the leaf spring and suspension hanger

Its threaded design ensures a tight

and promotes even weight distribution—resulting in improved ride comfort and prolonged component life

anchoring the rear portion of the front leaf spring to the frame rail

OEM Cross References:TRB5713

and extending the life of rear axle connections

OEM Cross References:FL37

The Bushing Installation Tool is a heavy-duty service tool built for use with Hendrickson suspension systems in trucks and trailers