Thread: oversize tyres for the disco

just a quick question, when they say 33' 35' etc how is that measured, is it diameter, hight, tyre wall or none of the above?

Tyre height in inches.

I have 265/75-16's on my series I Disco combined with Dobinson 2' lifted springs.
I've replaced the front radius arms with 3 degree cranked ones and left the rear standard. I've trimed all four arches and fitted extensions to them.

Now here's here my contension sets in. The Transfer box and gear box started to makes nasty noises on the over-run at 70mph. The work shop who fitted the gearbox and transfer box are saying that the lift and slightly over size tyres are the reason for the premature wear in the gearbox.
Now I think they are talking out of their backside and just don't want to replace the faulty tranny.
Has anyone ever had issues with the gearbox and transfer case because of slighty oversozed tyres and a 2" lift?
We all know that UJ's and propshafts can be subject to vibrations and premature wear...but the tranny also??

I'd be surprised if any one has.

Comments please?

Thanks guys.

is your Tran auto or manual?, I've got a similar tyre size same radius 225/75/16 with no probs not as wide but still, and still got the original gear box (mines manual don't know if that will make a diff), my advice get a second opinion, just don't tell em that its new box etc, just tell them about your tyre and lift upgrades, see what they say. either way you will find out whos honest.

sorry to interupt your gearbox issue.

Originally Posted by mickashay

just gave mine a measure and it was about 245cm aboutjust under 10inches
what is it with your tyres now

errr, 225mm front and 235mm rear


geez man if you got 245cm, I would be able to stand under that, just

Originally Posted by shorty

errr, 225mm front and 235mm rear


geez man if you got 245cm, I would be able to stand under that, just

LOL i did see that when it was written, it that height i could just about drive the falcon under, i'm mean gee's man what is it a monster truck.

here is a pic of my s1 disco with 255/85/16's on the front. I normally run 245/75/16's but when I saw these on it, I was astonished to see what a difference there is in size to the 255/85's.

It is on a RR rim so dont worry about the offset or anything, I was just interested to see what it is like for guard clearance. Keep in mind that the vehicle has a 2 inch suspension lift as well. There is no way I would be taking it bush without a decent body lift and maybe even a guard cut and some LRA flares