2021 Prado GXL GVM upgrade

[JBH Lurker Find all posts View Profile Close JBH]

I live in Canberra and recently had my suspension upgraded with OME about 6 months after I got the new car. Trying to get the GVM upgraded and so far contacted local certified engineers and have been told 3250 (maximum axle capacity) to 3500kg (3500kg would be based on braking and lane change tests) and costing between $1200 to $3400. Also spoke to Access Canberra but still have not got a simple answer about what is actually required. Is there anyone from Canberra who can let me know what the process is?

[Piggy Water pistol pilot. Find all posts View Profile Close Piggy]

You need to usually have the engineering done at same time as the install. That way its all approved components. Go See the Boys at Garage 76, and ask their advice, they do GVM upgrades from what I know.

[Daniel150 Member Find all posts View Profile Close Daniel150]

Hi mate, just checking in on how you got on with this?
Im not based in ACT but in most states it’s a fairly simple procedure if you are just upgrading to the maximum axle limits of 3250kg. The below advice is for POST REGO upgrades.
1. Fit the heavier duty/lifted suspension either with a mechanic or you can do yourself.
2. Contact a second stage engineer who does automotive work. They will come and look at the springs and measure “eyebrow”height to ensure its lower than 50mm difference from factory. This is the distance from wheel centre to mudguard. This is why most lifts are 40-50mm now days. This costs around $1300
3. They will then apply for a letter of exemption from the relevant motor authority or RMS etc. The RMS will then send you a letter of exemption to say you have modified the suspension with heavier springs and now have a new GVM. On the letter they will most likely only include vague details of the lift like a brand etc. This makes swapping them out years later fairly easy.
Some RMS may want you to then pass a vehicle roadworthy inspect which costs about $200 depending on the state.
4. Now you have a letter that must be carried in the vehicle at all times even though you have a new vin plate

If you want to raise the gvm to say 3500 like some suspension places do, you have to have the gear fitted and then the engineer will do lane change and braking tests etc. this ends up costing $3-4000. DO NOT use pedders for this, I speak from experience.

The best way to do it is find a 4x4 place that offers gvm upgrades and just do the whole lot there. They’ll have an engineer and all the process done for you.
Most brands can do it, they just need to know an engineer.
Hope this helps