The New National Code for vehicle mods.

[DarkHorse Vitara]

The 275 or 265 etc is the tyre width, so 275mm = 10.8"

I think David is saying that you can go 1.5" wider, so anything up to 12.3" would be OK... annoyingly this leaves you just short of either 12.5" or 315mm.

[Shadow]

The 275 or 265 etc is the tyre width, so 275mm = 10.8"

I think David is saying that you can go 1.5" wider, so anything up to 12.3" would be OK... annoyingly this leaves you just short of either 12.5" or 315mm.

no

you can go 50% wider (1.5times the width)

if you have 7.50R16 you can only go to 11.25"

but if you have 265 tyres you can go to 397.5 (15.6")

265/70/16 cant go to 33" tall though!

275/75/16 can go 33" tall, 15.6" wide!!!!!!!!

[DarkHorse Vitara]

But there's a total wheel track width increase limit too, isn't there? So unless you start getting creative with offsets and clearing chassis/suspension bits when steering hard that's still going to be restrictive?

A 50% increase seems uncharacteristically generous!

[Shadow]

But there's a total wheel track width increase limit too, isn't there? So unless you start getting creative with offsets and clearing chassis/suspension bits when steering hard that's still going to be restrictive?

A 50% increase seems uncharacteristically generous!

yes

the wheel track will probably create the limit for most cars

[XTREME MMM]

What about tyre width, are fair enough 33s are legal on a cruiser/patrol, but is the 12.5 width legal? I can't find any relevant information.

33 x 15 are legal if you tyre placard says 275 x 70 x 16 but not legal if it says 265 x 70 x 16.

Tyre width on a live axle vehicle is 1.5 that of the widest option on your vehicle.

Check you tyre placard first & do your homework and see if the 33 will be legal on your vehicle. It will depend on the tyre placard.

Cheers
David

Sorry David - can you talk me through that?



What am I missing?

33"tyre 15"rim i think

Depending on tyre placard, this is what you need to find out first.

33 x 12.5 x 15 could be legal all depends on vehicle tyre placard.

33 x 12.5 x 16 more then likely not legal, but do your sums with the tyre placard.

Guys look at the tyre placard first and work it out from there. That is what Transport or Police will (should) look at first.

Live axle:- Rim size can be 1.5 times wider than what is stated on placard and track can increase 50mm (track is center to center)

IFS:- Rim size can be 1.3 times wider than what is stated on placard and track can increase 25mm (track is center to center)


Cheers
David

[uninformed]

Dave,

can you recommend any DOT approved ENGINEERS in the Gold Coast or Brisbane area that are actually doing 4x4 mods and up with the new code/s

[XTREME MMM]

Dave,

can you recommend any DOT approved ENGINEERS in the Gold Coast or Brisbane area that are actually doing 4x4 mods and up with the new code/s

This is all new too everyone, I have even passed on my links to some Engineers.

Engineers or Approved People?

If it is an Approved Person, I can help you.

What are you wanting to do?

Cheers
David

[uninformed]

re post #2, #4 & #42 in this thread Dave, Im looking to lengthen my trailing arms, which means new arms and removing the OEM mount and Fabbing/installing a new one. I sent my 1854 into DOT, they phoned me a bit over a week later and told me to wait after Nov 1, and contact a approved ENGINEER (note I have emphisied the ENGINEER part). DOT said it will be up to the ENGINEER to decide whether it is doable, ok design and procedure and approve under relevant codes.....

On request they have provided me with a list of approved ENGINEER's....im just looking for someone decent, not dodgy, but wont charge me $1000 a phone call and $5000 a visit

cheers
Serg

PS sorry I havent been discussing something really tech like tyre size

[XTREME MMM]

re post #2, #4 & #42 in this thread Dave, Im looking to lengthen my trailing arms, which means new arms and removing the OEM mount and Fabbing/installing a new one. I sent my 1854 into DOT, they phoned me a bit over a week later and told me to wait after Nov 1, and contact a approved ENGINEER (note I have emphisied the ENGINEER part). DOT said it will be up to the ENGINEER to decide whether it is doable, ok design and procedure and approve under relevant codes.....

On request they have provided me with a list of approved ENGINEER's....im just looking for someone decent, not dodgy, but wont charge me $1000 a phone call and $5000 a visit

cheers
Serg

PS sorry I havent been discussing something really tech like tyre size

Hi, I have already questioned this type of mod and the LS5 & LS6 Codes that will cover possible mods like this.

I am waiting to get back an answer to how far we can go with it.

Some Engineers you could talk too are Phil Harris, Earl Gilchrist, Bruce Johnson or Clinton Harry.

Keep in mind we are all still trying to get our heads around what is written and are all trying to get clarification as we go.

I would be waiting a couple of weeks so it can all calm down a bit.

Cheers
David

[uninformed]

thanks for the names, yep wasnt going to rush as the poor buggers need the time to recived the codes and start to crack through them....mean while I am doing resarch and designs. I will be getting CAD drawings of mounts, getting some 1mm folded as an example and doing mock up of TA, all to take to said engineer so they can see what im looking at and advice if headed in the right direction...

[brooksy]

Phil Harris will approve & is probably the most recognized & qualified in Aust. The good thing with Phil he has a racing background & a common sense approach. Only problem is he can be a nightmare to get a hold of. He is Beenleigh area.
Bruce Johnson is OK but very timid & can be iffy with giving approvals. He really is only good for swaps. He won't touch it unless using factory parts & mounts, so I wouldn't recommend. The others I haven't dealt with.



brooksy

[uninformed]

thanks Brooksy, thats the kinda helpful info im after.

[uninformed]

has anyone delt with Ray Miller? Pm me if you dont want to post

[Shieldsy]

Mate got pulled up on the weekend, nailed for a body lift. Got the yellow sticker on the windscreen and got a court notice. Cop was saying a body lift is a illegal modification and is now under catorgry 2 which is un regod car, suspended licence etc. he was also saying even if the body lift is mod plated, stands for nothing if main roads havnt inspected and approved it. To get it approved he has to get it inspected and get another roadworthy.

Thoughts?

[-Scott-]

Mate got pulled up on the weekend, nailed for a body lift. Got the yellow sticker on the windscreen and got a court notice. Cop was saying a body lift is a illegal modification and is now under catorgry 2 which is un regod car, suspended licence etc. he was also saying even if the body lift is mod plated, stands for nothing if main roads havnt inspected and approved it. To get it approved he has to get it inspected and get another roadworthy.

Thoughts?

That's the way it was when I lived in Brisbane. There was no "mod plate" for a body lift; write to DOT for approval, obtain approval, do the lift, have it inspected. Relatively painless.

In SA, I had to have it engineered - along with the suspension lift and the 33s.

[Shieldsy]

when I lived in Brisbane. There was no "mod plate" for a body lift;.

theres people mod plating body lifts in qld, as long as the block is the same width as the mount or something like that.

[XTREME MMM]

Mate got pulled up on the weekend, nailed for a body lift. Got the yellow sticker on the windscreen and got a court notice. Cop was saying a body lift is a illegal modification and is now under catorgry 2 which is un regod car, suspended licence etc. he was also saying even if the body lift is mod plated, stands for nothing if main roads havnt inspected and approved it. To get it approved he has to get it inspected and get another roadworthy.

Thoughts?

All wrong. (about the body lift) There must have been a lot more to be put off the road. But if that was all it was the Officer was out of bounds & wrong in a big way.

As of mid April Approved Person's (me included) with the ability to sign off on a K3 were allowed to approve a body lift in a vehicle. No Transport approval was needed. You just needed to have a K3 Plate fitted to your vehicle stating it had a body lift.

Go to Court, I will even come and have my say. That Police Officer has no idea on what or what not is allowed.

Pay my plane fares and I will be there. (Unless I am at the RFC in December)

But we need the full story first.

Cheers
David

[stock 4runner]

Hey Dave. Reading through the roll cage rules I've noticed that a daily driver can not have A pillars .it has to go on confessional rego or something similar . But mine has been approved for about 4 years can I still drive it every day as it was done under the old rules ?

[XTREME MMM]

Hey Dave. Reading through the roll cage rules I've noticed that a daily driver can not have A pillars .it has to go on confessional rego or something similar . But mine has been approved for about 4 years can I still drive it every day as it was done under the old rules ?

Yes you can, as long as you have an LH8 stamped on the Blue Plate.

If not you best come & see me.

Cheers
David

[XTREME MMM]

Just spoke to vehicle standards re the LS9 & LS10

They have said that an LS9 & LS10 is only required for lifts (total of suspension, tyres & body lift) above 75mm is required.

Wording was incorrect re an LS10 being required for lifts 50 - 75mm (tyres & suspension).

No mod plate is required for lifts between 50 & 75mm (tyres & suspension)

K3 is still required for body lift.

Cheers
David

[bru21]

Hi Dave,

I have a 76 series with 33x16's and wanted to go a 3" lift with bolt on king 2.5" shocks.
Do I really have to go through all the hoops for something that has been done for years? Or will a approved person sign it off with an inspection.
For example; an ICV torsion test can be signed off with just an inspection - if there is an approved sister chassis that is identical.

Thanks for your help,

cheers bru

[XTREME MMM]

Hi Dave,

I have a 76 series with 33x16's and wanted to go a 3" lift with bolt on king 2.5" shocks.
Do I really have to go through all the hoops for something that has been done for years? Or will a approved person sign it off with an inspection.
For example; an ICV torsion test can be signed off with just an inspection - if there is an approved sister chassis that is identical.

Thanks for your help,

cheers bru

Maximum suspension lift is 50mm - no more.

Shockies are ok if mounts have not been changed.

Cheers
David

[Shieldsy]

Got the K3 yesterday. Finally a load off my mind!