TYRE SIZE ON 4X4 VEHICALS UPDATE - WOW

I posted a tyre size problem on here a few weeks ago. I am currently 40mm over the standard manufacturer size.

I got some realy good feedback on here and also some leads. I have followed these leads up and I am happy to present these findings.

I would like to say this has all come about with the initial ground work from a guy called Allan on the 'new Hilux' web site, who spent considerable time on the phone with Vic Roads. I have realy only confirmed his findings.

NOW -

I visited Vic Roads after deciding not to wait on the phone for 25minuites and have confirmed they have adopted the 'NCOP' - National Code of Practice for Light Vehicle Construction Bulletin 14 ( tyres, rims, suspension and steering)

This is a quote from the bulletin PAGE16:
"The overall diameter of any tyre fitted to an off-road passenger vehicle or a commercial vehicle must not be more than 50mm larger or 26mm smaller than that of any tyre designated by the vehicle manufacturer for that model"
See the link to confirm your self PAGE 16:
Site Link
I asked them why they have not changed their web site which still states +/_ 15mm ??
He replied that it is scheduled to be updated soon, but the staff know this has been adopted.( This is not Allans experience - he asked 4 times and got conflicting answers)

Hope this takes the weight off somebodys sholders out there.