Rocker Roller Spring Bush and Shackle Kit

Name: Rocker Roller Bush and Shackle Kit
Brand: Couplemate
SKU: RR-KIT
Price: 148.00 AUD
Availability: InStock

SKU: RR-KIT Category: Spring Bolts and Bushs Tags: Shackle Bolts, Shackle Plates and Bolts, Spring Bush Brand: Couplemate

Rocker Roller Bush And Bolt Kit | Replacement Kit

Price

$148.00 Inc.GST

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Rocker Roller replacement Bushes and Shackle Bolts

This Rocker Roller Bush and Bolt Kit contains the essential hardware needed to restore smooth operation and safety to your tandem or tri-axle trailer. Over time, constant oscillation wears down bushes and scores shackle bolts; this kit provides a direct replacement to eliminate suspension “clunk” and prevent uneven tyre wear.

Product Overview

Designed for heavy-duty applications, these components serve as the primary pivot points in your rocker roller system. By replacing your bushes and bolts simultaneously, you ensure a perfectly round pivot surface, which significantly extends the life of your suspension compared to replacing parts individually.

Key Features

High-Tensile Shackle Bolts: Engineered to withstand extreme shear forces, these bolts feature a greaseable design (grease nipple included) to ensure internal lubrication reaches the wear surfaces.
Precision-Fit Bushes: Available in high-grade Brass (for maximum durability in 2t+ systems) or Steel, providing a low-friction interface that resists “flogging out.”
Greaseable Technology: The cross-drilled bolts allow for easy maintenance—hook up a grease gun to flush out grit and keep the suspension moving freely.
Complete Set Compatibility: Sized to suit standard 60mm and 65mm rocker roller systems, including popular brands like Manutec and Dexter.

Technical Specifications

Bolt Sizes: Common options include 5/8″ (16mm), 3/4″ (19mm), and 7/8″.
Bush Material: Heavy-Duty Brass or Hardened Steel.
Bolt Type: High-Tensile Steel with integrated grease nipple.
Nut Type: Nyloc or Slotted with Cotter Pin (depending on configuration).
Application: Tandem and Tri-Axle Rocker Roller Suspension.

Why Replace Both at Once?

Installing a new bushing on an old, scored bolt (or vice versa) creates “slop” in the suspension from day one. Using a fresh bolt and bush together restores the original factory tolerances, ensuring your trailer tracks straight and handles the load safely.

Specifications

Rocker roller bushes and shackle bolts are essential components for enhancing suspension system performance. The inclusion of center bushes and center bolts provides improved alignment and stability, ensuring optimal handling.

Greaseable shackle bolts facilitate maintenance and extend service life, enabling smoother operation by reducing friction and wear. The innovative design of these components ensures they absorb shocks effectively, resulting in a more comfortable ride.

Overall, utilising high-quality rocker-roller bushes and shackle bolts maximises vehicle efficiency and enhances durability. In addition to their performance benefits, these components also contribute to safety by maintaining proper suspension geometry.

A well-maintained suspension system improves tyre contact with the road, resulting in better traction and braking performance. Upgrading to premium-quality parts can also reduce the risk of premature failure, which can lead to costly repairs or safety hazards.

Regular inspections and timely replacements of rocker roller bushes and shackle bolts are crucial in ensuring the vehicle remains in peak condition. Investing in these enhancements ultimately leads to a more enjoyable driving experience.

Associated Shackle Bolts and Bushes

Frequently Asked Questions

What is included in a Rocker Roller Spring Bush and Shackle Kit?

Our comprehensive service kits include all the wearing components needed to overhaul a tandem axle rocker roller suspension system completely. Typically, a standard 18-piece kit contains:

4 x Solid Steel Roller Bushes (inserted into the large eye of the spring)
4 x Nylon Spring Bushes (for the small spring eyes)
4 x Standard Shackle Bolts with Nyloc nuts
4 x Greasable Shackle Bolts (to facilitate routine maintenance)
2 x Larger Rocker Centre Bolts (greasable pins with matching nuts)

How do I know when my trailer suspension bushes and shackles need replacing?

You should inspect your suspension regularly for common failure signs detailed in structural maintenance guides like the Superior Trailer Parts Guide:

“Ovalisation” where round bush holes wear down into unsafe oval shapes.
Metallic rattling or persistent squeaking while towing.
Trailer sway or reduced stability on the highway.
Uneven tyre wear caused by misaligned tracking.

How do I choose between Nylon and Polyurethane bushes?

Material selection dictates performance, longevity, and maintenance frequency:

Bush Material	Best Used For	Key Advantages
Standard Nylon	General highway towing, budget-friendly overhauls.	Cost-effective, reliable, highly compatible with standard 60mm springs.
Polyurethane	Heavy-duty loads, outback corrugated roads, commercial use.	High heat resistance, extreme durability, and drastically reduced wear.

Are your kits compatible with my caravan or trailer?

Most standard Australian multi-axle systems utilise either 45mm or 60mm wide springs. Always verify your spring width and bolt diameter before ordering. For example, standard heavy-duty systems rely on 5/8″ (16mm) shackle pins. Even a 1mm mismatch will cause rapid bushing failure and severe mechanical noise.

Do I need to grease these suspension components?

Yes. To maximise the lifespan of your steel and nylon components, you must use greasable shackle bolts. When installing, ensure the grease circuit holes face outward so you can access them with a grease gun during routine maintenance without lifting the vehicle.

What safety checks are required after installation?

After a full bush and shackle replacement, perform a safety torque check after your first 50 kilometres of travel. This ensures all shackle bolts, nyloc nuts, and centre pins have seated correctly under load and remain safely tensioned.

Additional information

Weight	6 kg
Dimensions	20 × 10 × 10 cm

Our Service Lifetime Warranty

Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.

Couplemate™ is a manufacturer and vendor of high-quality towing, trailer, and caravan components. Couplemate™ Core Goods and Custom Work are guaranteed to be free of defects for the service lifetime of the product when used as intended.

Warranties are non-transferrable and Couplemate™ requires satisfactory proof of purchase prior to issuing a remedy. The full Couplemate™ Warranty Policy can be found in the Terms & Conditions: Section 8 – Consumer Guarantees & Warranty.

Warranties are in addition to your rights under the Australian Consumer Law. If something is wrong with your order, please contact our team.

60-Day Returns

After 60 years of experience, we know that life has its unpredictable moments.

All Couplemate™ orders (online, over the phone, or in-store) have a 60 day period for change-of-mind returns and exchanges. There are some items that can’t be returned and some returns may incur a 15% restocking fee.

You can view our full policy for change-of-mind returns here.