33" tyres on stock 2004 GU

Mick
Is that a no...?
thanks
gamefish

awwww Truckster, u always spoil the fun !

Its in my blood...

It depends upon what state you are in doesn't it

Which state are they legal in??

Nsw Nope.
Vic Nope
Qld Nope
SA Nope
WA Not anymore
Tassie maybe...

I'm about to add to that OL post to clarify the issue but the short story is that the max. size (legal without an engineer's cert) in states with the +15 mm rule, is 831 mm for the Patrol. This has only been "tested and approved" in NSW.

Hi Daniel,

I don't think you can get a placard with the 245/85/16 listed on it.
If you can find one please post the part number, I have searched everywhere for one without luck.

I believe the largest size shown on a placard is 265/75/16.

Regards, Mark

Captain
2 follow up questions:
-Is you GU standard height?
-Have you noticed any detremential effect of the larger diameter tyres on the gearing?
gamefish

1- Yeah, its standard height, probably a bit lower with all the accessories actually (compared to my brother-inlaws GU, mine is 25mm lower at the guards).

2- I changed the tyres over at ~35 kms on the odo, so havn't really got much experience on the 265/70's (7% difference). But I reckon the gearing is really good. Only complaint is that low range is not low enough, but the tyres make minimal difference to that, need the 2.5 reduction on low range, not the 2.0

Also, I fitted a Dtronic at 5,000kms and it probably prefers higher gearing than standard, but I never regretted the gearing change even before the Dtronic (more for towing, plus the bonus huge increase to bottom end just off idle)

Cheers

Captain

I think you will find that 285/75/16 is around 32.8 inches.
Closer to 33 than 32.

Hi Eric,

Just checked the BFG web site.

They list 285/75/16 Mud Terrain as 33.1 inch
and 285/75/16 All terrain as 32.9 inch

Maybe you worked out the sizes based on a 15 inch rim instead of 16 inch ?

Regards, Mark

I am going on my experience on purchasing tyres and taking proper mesurments when fitted , The most i got out of 285/75/16 is 32"

I know they sell them as a 33" but it never works out to a true 33 "

The only tyre I got close to a 33" was the 255/85/16

dont forget the middle profile number will give you more hight that the width fpofile number .

I have sat with a tape messure for many a time to calculate the Gear ratio I was going to run with each tyre

Guys forget about the tyre messurments they give you , get a tape messure and do it yourself with the tyre inflated on the rim, I think you will be shocked

OE or OME shocks Eric? and are the Nitrochargers or Koni's?

Sorry Bonz , are you asking me what shocks i would use ?