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Trailer and caravan Aggregate Trailer Mass upgrades

ATM (Aggregate Trailer Mass) upgrades in order to be more practical and meet the load capacity needs of their owners.

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Contact the engineers at Dr Tims Auto Engineering for advice and an assessment of the suitability of your vehicle for a GVM upgrade approval.

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At Dr Tim's Auto Engineering, we understand that trailers and caravans often need ATM (Aggregate Trailer Mass) upgrades in order to be more practical and meet the load capacity needs of their owners. This can sometimes require additional spare axle capacity, or improvements to the suspension, axle, wheels, and tires.

In order to properly evaluate an ATM upgrade, it is necessary to consider the frames, brakes, and safety elements covered in the VSB-1 Code. This is a complex process that requires the expertise of an engineer in order to complete a proper ATM upgrade approval certificate.

At Dr Tim's Auto Engineering, we are dedicated to helping our customers get the most out of their trailers and caravans. Contact us today to learn more about our ATM upgrade services and how we can assist you.

"Oz Rods is a specialist shop for restoring or modifying vehicles such as vintage cars, hot rods and street machines.

Dr Tims Auto Engineering has supported Oz Rods for over 10 years for certifying our modified vehicle work where we customise them to our customers’ requirements. We use Tim Bartrop for initial advice prior to commencement of the work all the way through to final inspection and approval of vehicles for registration. We offer the engineering certification process as part of our complete service to our customers.
Tim has operated like a seamless part of our business and has a great relationship with our team. This facilitates decision making and productivity in our shop.

We have found Tim Bartrop to be an experienced engineer who has used his knowledge to assist us in the building of some outstanding cars for customers.
We recommend Dr Tims Auto Engineering as an approved Queensland Transport operation for compliancing of modified vehicles."

Graeme Parmenter

Contact Us

Contact the engineers at Dr Tims Auto Engineering for advice and an assessment of the suitability of your vehicle for a GVM upgrade approval.