ARK Suspension Accessories – TYPE B Tandem Rocker Arm for 45mm Shackle Springs 5/8″ Hole (SKU: RAI45)

The ARK TYPE B Tandem Rocker Arm (RAI45) is a critical suspension component for trailers operating on a tandem axle setup. This Type B configuration features a 5/8″ main hole and is designed specifically to suit 45mm shackle-style leaf springs, offering enhanced durability and reliable load distribution across both axles.

Whether you’re hauling heavy gear on a boat trailer, caravan, or utility trailer, this rocker arm ensures that both front and rear springs share the load smoothly. It’s especially effective in reducing shock and vibration when traveling on rough terrain or unsealed roads.

Key Features:

• Designed to suit 45mm wide shackle leaf springs
• Type B configuration with 5/8″ main bore hole
• Durable steel construction with plain finish
• Helps evenly distribute load between tandem axles
• Ideal for trailers with 15″–16″ wheels

Common Applications:

• Boat trailers
• Caravans
• Dual-axle utility and farm trailers
• Camper trailers requiring stable load transfer

Why Choose ARK Tandem Rocker Arms?

ARK is a name trusted in Australia for high-performance trailer components. Their rocker arms are manufactured to meet demanding towing conditions, providing a long-lasting and stable suspension solution. Whether you’re going off-road or sticking to the highway, ARK ensures your trailer tracks true and safe.

Installation Tips:

• Ensure proper alignment between rocker arm and equalizer hangers.
• Use high-grade shackle bolts and check torque specifications.
• Apply anti-seize lubricant if used in marine or high-moisture environments.
• Regular inspection is advised for wear or misalignment during long hauls.