Build your own tandem axle trailer with this comprehensive 3000kg DIY trailer kit from Trailer Spare Parts Australia.
Featuring Australian-made 45mm square solid axles, 10-inch electric drum brakes and 7-leaf rocker roller suspension, this package provides essential running gear, braking and towing components for a compatible trailer build.
Our Brisbane team machines the axles in-house to your selected length. Choose your axle configuration and drum stud pattern using the product options above.

MADE TO ORDER
All kits are made to order. Our team machines the axles to your selected length, so kits are not available for same-day collection or dispatch. Please contact our team for current lead times.
| Kit rating | 3000kg |
| Axles | 2 × 45mm square solid steel |
| Suspension | 7-leaf rocker roller |
| Brakes | 10-inch electric drum brakes |
| Bearings | Ford SL |
| Approximate kit weight | 280kg |
Important: Select the axle length and drum stud pattern to suit your trailer and wheels. Review the available product options before adding the kit to your cart.
This is a trailer parts kit, not a complete trailer. The trailer chassis, wheels, tyres and electrical wiring are not included. The finished trailer must meet applicable Australian requirements, and its allowable loading depends
on the complete design and component selection.
Our Brisbane team can help you select compatible trailer components for your build.
Visit our Help Centre
for axle measurements, stud patterns and trailer building information.
Any products thought to be faulty can be returned to Trailer Spare Parts Australia for investigation at the customer’s expense. We reserve the right to determine whether the item/s are faulty or have been incorrectly used or mistreated. We are happy to accept any unwanted stock within 14 days of delivery or collection. Returned items must be in “as new” condition for resale. Any specially ordered axles (IRS, Overlay and Drop Axles) are not returnable. Trailer Spare Parts Australia charges a re-stocking fee of 15% to any authorized returns, plus freight if the goods returned are not subject to warranty.
If the goods are subject to warranty, Trailer Spare Parts Australia will replace the goods and pay all freight inbound and outbound under our terms and conditions. All products sold by Trailer Spare Parts Australia carry a 12 months warranty under our terms and conditions.
Recommendations for these terms can be found on each product page, except for disposable parts (bearings, brake pads, etc).



IMPORTANT: The lines highlighted in yellow are the products we supply.
| Wheel Type | Stud Diameter | Stud Number | Inches PCD | MM PCD | Centre to Centre of Adjacent Studs | Centre to Centre of Adjacent Studs |
|---|---|---|---|---|---|---|
| Gemini | 7/16" | 4 | 100.00 | 2 13/16" | 70.7 | |
| Mini | 7/16" | 4 | 4" | 101.60 | 2 13/16" | 71.84 |
| Capri | 7/16" | 4 | 4 1/4" | 107.95 | 3" | 76.33 |
| Cortina/Telstar | 7/16" | 4 | 4 1/4" | 107.95 | 3" | 76.33 |
| Datsun 1600 | 7/16" | 4 | 4 1/2" | 114.30 | 3 3/16" | 80.82 |
| Early Ford | 1/2" | 4 | 4 1/2" | 114.30 | 3 3/16" | 80.82 |
| Toyota Corona | 7/16" | 4 | 4 1/2" | 114.30 | 3 3/16" | 80.82 |
| Valiant to 71 | 7/16" | 5 | 4" | 101.60 | 2 3/9" | 59.72 |
| Holden HT HG HK | 7/16" | 5 | 4 1/4" | 107.95 | 2 1/2" | 63.45 |
| Ford | 1/2" | 5 | 4 1/2" | 114.30 | 2 5/8" | 67.18 |
| Valiant 71 - 72 | 7/16" | 5 | 4 1/2" | 114.30 | 2 5/8" | 67.18 |
| Commodore | 7/16" | 5 | 120.00 | 2.776" | 70.53 | |
| Holden HQ HJ HX | 7/16" | 5 | 4 3/4" | 120.65 | 2 13/16" | 70.91 |
| Ford F100 | 1/2" | 5 | 5 1/2" | 139.70 | 3 1/4" | 82.11 |
| Ford-Jeep | 1.2" | 5 | 5 1/2" | 139.70 | 3 1/4" | 82.11 |
| Land Rover | 5/8" | 5 | 6 1/2" | 165.10 | 3 13/16" | 96.98 |
| Land Cruiser 100 Series | 9/16" | 5 | 150.00 | 88.17 | ||
| Land Cruiser 4WD | 1/2" | 6 | 5 1/2" | 139.70 | 2 3/4" | 69.85 |
| Nissan Patrol | 1/2" | 6 | 5 1/2" | 139.70 | 2 3/4" | 69.85 |
| Nissan Navara D40 | 1/2" | 6 | 114.30 |