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tedsalad LifeTime Member
Age: 60 Zodiac: Joined: 09 Mar 2007 Posts: 382 Location: Watford
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Posted: Wed Nov 06, 2013 13:10 Post subject: Will Different tyre sizes smash my transfer box? |
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I know this is in the wrong place, I will ask a mod to move shortly.
I have just fitted a lovely new pair of Cooper Discovery STTs on the rear of my 3.2Did 265*75*16
They are about 40mm higher off the ground than the Cooper RT 265*70*16s on the front.
Will this be a problem in 4*4? |
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Posted: Wed Nov 06, 2013 13:10 Post subject: Google Ads keep the POCUK free to join! |
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tom fenton LifeTime Member
Age: 43 Zodiac: Joined: 28 Dec 2010 Posts: 1700 Location: South Yorkshire
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Posted: Wed Nov 06, 2013 13:17 Post subject: |
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I say yes it will, even the Mitsubishi handbook states that you need to use the same size tyre on all 4 wheels. |
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rich r ********
Age: 50 Zodiac: Joined: 11 Sep 2009 Posts: 5332 Location: Selby, North Yorkshire
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Posted: Wed Nov 06, 2013 13:32 Post subject: |
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It will cause it to work much harder, yes. Won't do wonders for the handling either, as you'll have quite different levels of grip between the front and rear with those different tread patterns.
Also if you're involved in an accident your insurance company may well take a dim view of it too. It's not illegal to have different diameter tyres on front and rear (must be the same on the same axle though) - but unless you tell your insurance company that you've deliberately chosen to do this, they will probably not pay out. Also they might ask why you're doing this, as it's not generally considered sensible.
All four tyres should be as close as possible to having the same overall diameter. This is why Mitsubishi tell you to rotate front and rear tyres regularly to ensure that they wear evenly.
Go and buy another two tyres so they're all the same |
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venn105 LifeTime Member
Age: 49 Zodiac: Joined: 15 May 2008 Posts: 13103 Location: Lancashire
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Posted: Wed Nov 06, 2013 15:11 Post subject: |
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As above,use 2h till you get 2 more same size do not use 4h |
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Rob.ie *****
Age: 47 Zodiac: Joined: 08 Jun 2010 Posts: 754 Location: Cork - Ireland
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Posted: Wed Nov 06, 2013 16:38 Post subject: Re: Will Different tyre sizes smash my transfer box? |
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tedsalad wrote: |
Will this be a problem in 4*4? |
Most definitely YES!
I'm currently running 265-65-17's on the front of ours with 265-70-16's on 8" Patrol rims on the rear. Had the caravan out last weekend and got the alarming flashing amber center-diff light after about 80 miles. Overall diameter is only 0.1% different so I believe in my case it was the weight difference between the wheels that also contributed to it. I don't know what actually happened - consulted the handbook and it said to restart, if no light then no problem, but orange light was on again 10 miles later.
Needless to say I put it in 2WD for the return journey (not ideal when towing) and its stayed in 2H since until I can match one of the pairs of tyres/wheels with another pair. |
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johndps *******
Age: 59 Zodiac: Joined: 05 Feb 2003 Posts: 3204 Location: Paisley,Scotland
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Posted: Wed Nov 06, 2013 16:45 Post subject: |
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I'd say it's inadvisable.
I bought a car a few years ago, tested 4wd on the test drive.
Car went for a few hundred yards, then kinda dull thunk, steering was fine then car started to slow down.
Flipped it back out 4wd, another thunk.
Pulled over, checked tyre sizes, front was smaller than rear.
Bought the car anyway.
Changed tyres to same size all round, car went in and out 4wd no probs after that.
I don't know why the diffs don't take up the slack, but in my experience, I woul;dn't select 4wd with different sized tyres front to rear.
Needless to say, different sizes on same axle is a big no no. |
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tedsalad LifeTime Member
Age: 60 Zodiac: Joined: 09 Mar 2007 Posts: 382 Location: Watford
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Posted: Wed Nov 06, 2013 21:01 Post subject: Wheels |
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Thanks guys,
New pair ordered and being fitted tomorrow, another £200 I won't see again. Still should be able to take on Everest once there on!
Thanks again |
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venn105 LifeTime Member
Age: 49 Zodiac: Joined: 15 May 2008 Posts: 13103 Location: Lancashire
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Posted: Wed Nov 06, 2013 21:30 Post subject: Re: Wheels |
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tedsalad wrote: |
Thanks guys,
New pair ordered and being fitted tomorrow, another £200 I won't see again. Still should be able to take on Everest once there on!
Thanks again |
and when you get to the top of everest fly a Y/D as you would not have got there without POC |
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tedsalad LifeTime Member
Age: 60 Zodiac: Joined: 09 Mar 2007 Posts: 382 Location: Watford
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Posted: Wed Nov 06, 2013 21:52 Post subject: Everest |
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Not sure what a Y/D is but I agree this is the most helpful and reliable site I've ever been on. |
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johntwarden LifeTime Member
Age: 69 Zodiac: Joined: 21 Jul 2013 Posts: 622 Location: rochester, kent
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Posted: Wed Nov 06, 2013 23:15 Post subject: Re: Everest |
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tedsalad wrote: |
Not sure what a Y/D is but I agree this is the most helpful and reliable site I've ever been on. |
Yellow diamond sticker from poc shop |
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tedsalad LifeTime Member
Age: 60 Zodiac: Joined: 09 Mar 2007 Posts: 382 Location: Watford
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Posted: Wed Nov 06, 2013 23:37 Post subject: Yellow Stickers |
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I've been using this site for 6 years, first I've heard of it. Might be room for some improvement on the marketing side!
Anyway I'm all contributed and yellow stickered up.
Thanks |
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tedsalad LifeTime Member
Age: 60 Zodiac: Joined: 09 Mar 2007 Posts: 382 Location: Watford
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Posted: Wed Nov 06, 2013 23:43 Post subject: Yellow Stickers |
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I've been using this site for 6 years, first I've heard of it. Might be room for some improvement on the marketing side!
Anyway I'm all contributed and yellow stickered up.
Thanks |
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sxw17 LifeTime Member
Age: 67 Zodiac: Joined: 01 Feb 2008 Posts: 212 Location: Newtown Mid Wales
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Posted: Thu Nov 07, 2013 17:07 Post subject: Re: Wheels |
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tedsalad wrote: |
Thanks guys,
New pair ordered and being fitted tomorrow, another £200 I won't see again. Still should be able to take on Everest once there on!
Thanks again |
When you get the Cooper STT's fitted all round, will you post a pic, I'd like to see what they look like on the mk3 and let us know how they feel and is the body clearance good. I'm still undecided what to stick on mine.
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Rob.ie *****
Age: 47 Zodiac: Joined: 08 Jun 2010 Posts: 754 Location: Cork - Ireland
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Posted: Thu Nov 07, 2013 23:49 Post subject: Re: Wheels |
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tedsalad wrote: |
New pair ordered and being fitted tomorrow, another £200 I won't see again. Still should be able to take on Everest once there on! |
Brand new STT's for £100 a pop? |
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tedsalad LifeTime Member
Age: 60 Zodiac: Joined: 09 Mar 2007 Posts: 382 Location: Watford
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Posted: Thu Nov 07, 2013 23:51 Post subject: Tyres |
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Mates rates |
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