265/70x17 tyres on d4

[PaulGOz]

Is anyone running a 265/70x17 tyre on a D4? If so which brand and do you have any clearance rubbing problems? My measurements indicate I only have about 15mm clearance from the front tyres to the chassis rail that protrudes into the rear of the front wheel well off of my current 265/65x17 which are 50 % worn. So I am assuming at about 806mm I will rub then there is flex in bushes etc to consider which must be another few mm again. Most 265/70 tyres are about 804 mm so keen to see feedback from those that have tried.

[Redback]

I used to run 265/70/17 Khumo KL78s, never had any rubbing to speak of, great tyre.

Not very good in slippery off road situations though, especially steep up hills.

Baz.

[d3viate]

Although mine were fitted to the D3, same brake diameter, there was slight rubbing on the rail but the WORST problem is when it goes into limp mode you cannot move anywhere when it puts you on the bumpstops, you are locked on your tyres and as limp mode is LandRovers response for pathetically small problem reporting, it can become rather "colourful" in language in the car at times.
Limp mode may be fine for people who live over east with dealers within a day but anywhere else in OZ it is a PITA.

[Blue C]

I have 265/70/17 Cooper ST Maxx on my D3 (Performance Wheels BB6 rims) and likewise minor rubbing on the inner chassis rail at close to full lock when new. Now the tyres have over 10,000 Km's doesn't seem to be an issue. Outside diameter is quoted at 808mm. By the way very happy with these tyres Offroad but still pretty noisy for around town (hence OEM 19" go back on at home). Have been fortunate not to have fault causing it to drop to bump stops (yet) but have LLAMS with recovery mode switch which would help reduce the stress a bit! David

[Tombie]

Although mine were fitted to the D3, same brake diameter, there was slight rubbing on the rail but the WORST problem is when it goes into limp mode you cannot move anywhere when it puts you on the bumpstops, you are locked on your tyres and as limp mode is LandRovers response for pathetically small problem reporting, it can become rather "colourful" in language in the car at times.
Limp mode may be fine for people who live over east with dealers within a day but anywhere else in OZ it is a PITA.

Hang On....

Lets put some context into this shall we....

Land Rover make a vehicle, which has a 'safety' default of Bump stop level.

They design their vehicle with sufficient clearance around the specified tyre diameter to allow this event to occur and the vehicle to be 'limped' to a place of diagnosis and repair...

Then here comes someone who decides that the vehicle "needs" larger rubber. Whacks on a larger size - outside factory spec and off they go. 31.61" vs 30.05" std... or a 10% change

Something goes wrong and the vehicle lowers to the bump stops and sticks itself.... And they cant even limp it somewhere because their oversize rubber has the vehicle pinned to the body.

Now who do you think is to blame here?
Who should we get angry at really?

What was done to the vehicle, was a vehicle modification.

With any modification there are trade offs... And other things need to be modified to ensure the cohesive operation of the vehicle after the modification is made.

In the case of a D3 / D4 / RRS you have a couple of options:


Install longer bump stops
Fit a manual / emergency air up kit

Any modification will have a trade-off involved and may require additional work...


To blame LR for your modifications is showing a lack of Personal accountability :cool:

[chuck]

I ran 265 X 70 x 17 MT MTZ's on my D3.

There was a minor rub when in reverse & on full lock on the left front inner guard liner which I zip tied further back to the chassis.

This fixed the problem.

In my opinion these are a great size tyre for the car however as Tombie states above you have to be aware what will happen if you have an air failure with these oversize tyres.

I have seen a rear air line failure whilst out in the bush & it was a forum member on here, he had standard size tyres and got out albeit very slowly.

Every one also assumes that it will be a compressor or electronic failure but something as simple as a stick in the wrong place can break an airline & you have the same problem.

If I was to run these diameter tyres on my D4 I would fit GOE's emergency inflation kit.

The other thing to remember is that we choose to buy these cars & the way they drive of which air suspension is a major part.

I can tell you from experience that an $80k Prado with all the ARB fruit does not drive nearly as well as an $80k D4.

Cheers

Chuck

[Tombie]

So can I Chuck...

My Prado is just outside the door and nowhere near as comfortable to operate.

[Graeme]

I have seen a rear air line failure whilst out in the bush...If I was to run these diameter tyres on my D4 I would fit GOE's emergency inflation kit.It sounds as though the GOE kit would not have overcome this failure although a simple joiner would have, so have both.

[discotwinturbo]

I noticed Gordon's kit has a joiner thrown in for good measure. Placed my order yesterday at his Christmas BBQ for the kit. Hoping that my Israelite Bay trip is without incident.

I learnt yesterday that a suspension fault could also refer to tyre pressures dropping!

Happy Christmas to you.

Brett....

[Graeme]

I noticed Gordon's kit has a joiner thrown in for good measure.I thought afterwards that Gordon's probably included one.

[sniegy]

I learnt yesterday that a suspension fault could also refer to tyre pressures dropping! Brett....

That is true Brett,
I have had 2 punctures & both times I have got an "Air Suspension fault logged"
It's a great secondary warning :-)

Sent from my iPad using Forum Runner

[gghaggis]

I thought afterwards that Gordon's probably included one.

It does - and the 4 valve bodies can be used as joiners as well!

Cheers,

Gordon

[gghaggis]

I have a client with a 2.7 ltr D4, with 265/70R17 muddies, so yes they fit. I've driven a D3 on the bump-stops with this size tyre (out of necessity, before I developed the GOE emergency kit). It didn't quite "lock-up" on the tyres, but it probably removed several mm of rubber driving the 40km to the main road!

Cheers,

Gordon