Thread: D3 18" off road tyres?

Originally Posted by muppo

<snip> Now the bad, Noise noise noise, what can I say. I read multiple times about how quiet they are but really they are noisey with a drown and rumble at low speeds but at highway speed there is little noise. <snip>

How had your old tyres worn, did they show any signs of wear through mis-alignment? Just a thought, because if your tracking is out that would make the tyres noisier. As you will know the D3 is set up like a car with adjustable cams, everything is adjustable on both axles for toe, camber, etc.

Jon

Quote:
Originally Posted by muppo

<snip> Now the bad, Noise noise noise, what can I say. I read multiple times about how quiet they are but really they are noisey with a drown and rumble at low speeds but at highway speed there is little noise. <snip>

Interesting as I find the Grabbers fine, in fact noise being neglible. Windows up don't hear a thing, windows down, at speed no problems either,

Regards

Stevo

Like Jon said, the wheel alighment can affect noise levels.

Mine made a racket when the alignment was out and quietened right down when it was fixed.

Some feed back on the Yokohama Geolander A/TS 265/60/18" - I've had them on since mid-Oct'07and very happy with them. As quiet as the Wranglers, little more roll on tight corners then the Wranglers (on the tar), work well in the dirt, have yet to give them a good run in the mud, wearing well (15,000k's and lots to go - certainly better then the OEM's). Cheers.http://www.aulro.com/afvb/images/smilies/smile.gif

Originally Posted by D3Jon

How had your old tyres worn, did they show any signs of wear through mis-alignment? Just a thought, because if your tracking is out that would make the tyres noisier. As you will know the D3 is set up like a car with adjustable cams, everything is adjustable on both axles for toe, camber, etc.

Jon

The insides had worn uneven due to poor wheel alignment but that was rectified when the new tyres where fitted.

Originally Posted by muppo

The insides had worn uneven due to poor wheel alignment but that was rectified when the new tyres where fitted.

Was the alignment done by a main dealer or a tyre shop?

I ask because the air sprung D3's have to be set to a specific height before alignment is carried out for it to be done correctly. The required height is non user selectable and has to be done with Test Book (The LR diagnostic computer).

My dealer did mine just before I got new tyres fitted and it only cost $90 for the full alignment. These cars are also complex to set up and is best done by someone who has done a few before.

Jon

A further comment on 18" tyres for OR work.
I fitted a set of 18" AT tyres and travelled over 3000 kms offroad and 2000 kms on the black stuff (heavily loaded). On getting back to the coast I had the tyres examined by the manufacturer. Following are the comments from their technical experts.

Our Tyre engineer has found the following;

What has occured is called, swelling of the tread. It occurs due to a signifcant difference in temperature between the tread and sidewall. caused by low pressure usage over an extended time. it is also evident near the bead area of the tyre.

Our engineer has advised this is not uncommon in H, V and W rated tyres where the tyre is manufactured to meet very high speed requirements. This reduces its offroad ability, as the offroad ability is compromised to meet the high speed rating.

It is also magnified by the fact this tyre is of low profile design, so the sidewall height is significantly less than a normal LT or offroad style tyre. When used at low pressure heat build up will occur faster than a taller sidewall tyre.

I am not having a go at any tyre manufacturer as this will apply on all. All this highlights that if you intend to use your D3 with 18" and 19" tyres in long distance low pressure touring (i.e. the desert) you will experience premature failures. I will review my tyre options and will probably purchase a set of 17"s for my desert and outback touring. For short distance offroading I don't believe that there are any issues.

Originally Posted by D3Jon

Was the alignment done by a main dealer or a tyre shop?

I ask because the air sprung D3's have to be set to a specific height before alignment is carried out for it to be done correctly. The required height is non user selectable and has to be done with Test Book (The LR diagnostic computer).

My dealer did mine just before I got new tyres fitted and it only cost $90 for the full alignment. These cars are also complex to set up and is best done by someone who has done a few before.

Jon

It was done at a tyre joint so this maybe why the tyres are noisey! I'll get the dealer to do at wheel alignment and i'll post the results.