DAF Chassis Extension to Suit 9.2m Tray

DAF Truck wheelbase extension

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Truck Bodies July

The month of July was another busy one here at AA Diesel Truck Bodies, with a range of tipper bodies, trays, trailers, wheelbase modifications, and custom jobs delivered. One of our more specialised jobs this month included a custom chassis extension for a DAF.

Truck Engineer Consultations

The job was tricky to say the least and required a lot of care and thoroughness to get it done properly. Before starting any work, we engaged in lengthy conversations with the client to understand exactly what was required. Once we had an understanding of the unique requirements, we then took time to measure the existing truck and determine the weight distribution calculations.

This includes weight distribution when under different types of load, the weight on the front and back, and the overhang. Our in-house engineer was involved in these consultations, helping us to work out the boundaries of what was possible. The careful planning process meant that we were able to ensure the highest quality possible and keep to, if not exceed, Australian truck body standards.

Wheelbase Extension / Chassis Stretch

Based on our planning, we were able to extend the wheelbase of this DAF, which was originally a prime mover, to suit a 9.2 meter length tray. Each truck manufacturer has their own requirements for performing a wheelbase modification, so we made sure that followed the DAF manufacturer guidelines. We pressed the new chassis in-house using the highest quality materials along with a complete axle roll back and double skin rails.

New tail shafts were manufactured, balanced and fitted to correct driveline angles. During this process we meticulously check and check again to make sure everything is balanced. It is critical to get this part right to ensure there is no driveline vibrations or shuddering, and to ensure longevity of the driveline components in the future. We then went through the process of extending all of the electronics and pneumatic airlines. This is an intricate process with each manufacturer having their own unique way of routing electronic components and airlines. When completed, the new wheelbase extension was painted to match the existing chassis colour.

Check out the photos for the finished product.

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Truck Trailer

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Wow. Looking back, March was insanely busy with lots of different projects including tippers, trays, and trailer combos. One of our highlights was when our existing clients, Otway Civil asked us to build a brand new state-of-the-art 3 axle dog trailer for their HINO tipper. 


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