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Race Products

Floater kits

High-Performance Axle and Hub Assembly Solutions

What is a floater kit?

A floater kit is a heavy-duty alternative to a flanged axle setup. In a flanged setup, the axle shaft carries everything: drive, vehicle weight, braking force and cornering load. In a full floating setup, those loads are handled by the hub, bearings and housing. The axle only transmits torque.

The result is a stronger, safer system. If the axle breaks, the wheel stays on the car because it’s retained by the hub and bearings, not the axle. Floater kits also reduce brake pad knockoff under hard cornering, because the hub and bearings are doing the locating work rather than the axle.

Floater kits are a critical safety component for drag racing, circuit racing, and rallying. They reduce the load on your axle and the risk of losing wheels while cornering or launching. Floating hub kits are now standard fitment in many engineered street vehicles, classes of circuit racing, drag racing and rallying, and are a legal requirement for modified street cars and hot rods running wide or large-diameter wheels.

How floater kits work

Most standard production cars have a pressed-on wheel bearing that fits inside the diff housing, held in place by a collar on the axle shaft. The flange that holds the wheel is part of the axle itself, carrying all loads: weight, cornering forces and drive. This design can lead to axle failure under extreme driving conditions, as the bearing and axle shaft are subjected to excessive stress.

Floater kits address this by decoupling the wheel from the axle, allowing the axle to focus solely on transmitting drive forces. The floater kit’s spindle and bearing assembly takes the load off the axle using two larger, heavier-duty bearings capable of handling increased loads and cornering forces, reducing the risk of bearing failure. The spindle and hub assembly creates a more robust attachment point for the wheel, hub and brake assembly, minimising the risk of wheel loss and reducing pad knockoff from axle flange flex.

Our floater kit range

Race Products manufacture floater kits for street, drag, circuit, speedway and rally applications. They’re not just race parts either: the 1500 Series is engineered to VSB14 for road registration with engineer approval, with supporting evidence for a 2500 kg GAWR, so it’s as at home under a tow rig or a loaded ute as it is under a race car. All kits are manufactured in-house at our Brisbane facility using CNC machining and precision welding. Raw materials are sourced from verified suppliers with full heat number traceability.

Use the table below to find the kit that suits your application, then click through for full details.

Kit Street Drag Circuit Speedway Rally Street Rod
770 Series ✓ ✓ ✓ ✓ ✓ ✓
1500 Series ✓ ✓ ✓ ✓ ✓ ✓
2500 Series ✓ ✓
Cambered floating hub kits ✓ ✓ ✓

Contact us if you’re not sure which kit suits your application. We’re happy to help work it out.

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770 Series

Our steel fully-floating hub kit for smaller, lighter diffs. The same hubs, bearings and locking system as the 1500 Series in a compact package, available in four-stud and small five-stud patterns. A good match for smaller housings like the Hilux.

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1500 Series

Our most popular steel floater kit, for the Ford 9″ and other big diffs. Five stud patterns, 28 to 35 spline, and the widest choice of brake kits we offer. Standard or upgraded locking system. Not just a race part: engineered to VSB14 for road registration with engineer approval, with supporting evidence for a 2500 kg GAWR.

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2500 Series

For the serious Drag Racer we also have the alloy 2500 Series Floater kit. Designed for Competition Cars, this kit has been built to handle well over 3000HP.