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  • Another 33" topic

    I've read literally ALL topics that mentioned 33", 285/70r17 and 255/80r17 but haven't arrived at a conclusion yet. Giving my shot asking here again.

    I have a 2010 Prado 150 and am looking at changing my 265/70 BF KO (old version) into Flaken's 285/70. I have questions around what is really needed to not rub.

    Offset: Stock wheels are 25P and I've read that 15P are enough to not rub. I was thinking about putting some steelies, but they come in 0 offset. Would that push the tyre too far out? There are also 10P but they are 17x9 instead of 17x8. There are 15P 17x8 as well.

    My car has arb bullbar and a tough dog suspension, which was there since I bought so not sure what lift it has. Reading at their website supposedly it is 40mm, so a bit under 2", but when I compare to other Prados, I always think mine is sagged, lower than others.

    I never do heavy trails, rock crawling etc.. but do go to sand dunes which sometimes are quite bumpy, not sure if enough to be problematic though.

    I'd appreciate very much any guidance you can give in terms of wheel offset, if steelies will mess up my ride due to weight and if I can put the 285 at the rear door.. or even if I SHOULD. My current step tyre is a KO2 brand new on stock rims.

    Thanks so much,
    Martinez

  • #2
    Hi Martinez
    I have a question in regards to the 265/70r17 tyers you've been running.
    I have a 2018 gxl150 deisle prado and want to fit 265/70r17 bfg all terains. Now one of the tyre joints is telling me it will be a problem when towing as the car will loose a bit of power due to the bigger tyre size which may cause the car to want to change in and out of gear when towing have you had this problem or any others besides the norm ?
    I tow a 17 ft van.
    Can you shed any light ?
    Regards
    Tim

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    • #3
      Originally posted by Martinez View Post
      I never do heavy trails, rock crawling etc.. but do go to sand dunes which sometimes are quite bumpy, not sure if enough to be problematic though.
      Then just stick with 265/65R17 or 265/70R17. This will maintain the power on sand. Changing to 285/70R17 will add weight and reduce power.
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      • #4
        Hi Trouchet,
        your tyre guy is correct. That bigger tyre size is larger diameter and it means that your vehicle would be effectively trying to run in a higher gear ratio hence the more frequent hunting of gear changes, not really beneficial for towing. I have a caravan, 2.5-2.6t depending on how much I load it.
        2019 Prado GXL 2.8L Diesel
        2003 Jimny too

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        • #5
          My car is manual, so can't really comment on autos. I did tow a furniture trailer recently and it was horrible on ramps. Stopped on a red light on a slight slope and had to put in low range to get the car moving, then had to stop to switch back to high range.. not ideal!

          amts i want the bigger tyres primarily for looks (not gonna lie here) but also for extra clearance. I've been bogged before because of belly scrubbing on sand! I've learned my lesson and always put in low range now, do you still think the drop in power is that meaningful? Or might give me just a tad bit of extra clutch burning to get going and then that's it?

          Would appreciate any guidance on offset to get it without rubbing

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          • #6
            The first thing I do before hitting sand is to drop the tyre pressure. I have not used low range in sand before. Flotation and momentum is key on sand. For clearance, you are better off with a lift.
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            • #7
              I was looking at putting the 285x70/17s on my 150 but it seems not many people have done it and people seem to always say stick with the 265x70s which in my opinion is too small.

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              • #8
                Plenty of people have done it. People say to stick with 265/70s or std size cos the fuel economy and power both suffer with the 285s.

                Fwiw, I run 285/70/17 muddies on 17x8 +10 rims in the bush for the better clearance they offer. Don’t rub on anything. I Don’t care about fuel economy while 4wding and a tuned 1grfe helps with the power hit.

                on road I run 285/65/17 on a +18 rim in a HT so it keeps weight down a little compared to a LT 285/70..
                I also tow a 2.5ton large enclosed trailer which it handles fine.
                no question it would pull the trailer better and get better economy with std size tyres, but I like the look and width of the 285s so happy to run them.
                , and some attention to what gears get used can make a bigger difference to economy than the tyres do..

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                • #9
                  amts agree that flotation, momentum are key. I already have a 2" lift (sagged at this point). The excuse I'm using is that the tyres will give me higher true clearance under the diffs. I know that rationally I should keep the 265/70r17, but this is a "toy" and I really want the bigger tyres

                  The tyre shop I went to today said they weren't sure if the steel wheels that they have (0 offset or +15 offset) would fit. They were afraid it would hit the break stuff on the inside. Any of you have put 285/70r17 with cheap steelies and could recommend which ones fit?

                  From what I've read, anything between 0 and 15 offset will not rub on the UCA, but towards 0 offset it might stick out of the guard, do you guys know which offset is the lowest I can go? From a law perspective I read it is +12 since the stock are +25.

                  I also would have to change the spare wheel on the back door, as it's currently on stock rims and 265/70. Will I have any issues fitting it (without the cover, as current also doesnt fit under cover) or the offset difference will make it ok?

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