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Thread: What size tyres are you running on your D4 with 18' rims?

  1. #1
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    Post What size tyres are you running on your D4 with 18' rims?

    New tyres needed.. I off road alot and have come from a Land Cruiser. No problems with rubbing in the LC even with 35" tyres. Still trying to learn about the D4

    looks like these are the biggest that could fit
    31.5" 285/60/18 +36mm OD
    31.6" 265/65/18 +39mm OD
    32.1" 275/65/18 +52mm OD
    32.6" 265/70/18 +65mm OD
    32.6" 285/65/18 +65mm OD

    any real world advise on what you run?
    is it the height or the width the problem with rubbing?
    not looking to trim or cut stuff.
    I have IID so can set a higher standard height if required.
    LT AT tyres only, eg Nitto Ridge Grappler, Faulken AT3W, BFG KO2, Cooper STmax,

  2. #2
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    First check what you can legally put on with the state authority. Going too big could be illegal. Have you seen this spreadsheet?
    18in tyre choices.xlsx
    Rod

    D4 MY16 5 seat TDV6 - LLAMS, Custom Drawers, OL Bar, Toyo Open Country, GOE Rims, Lithium DBS, eDiff, OA Long Range Tank, GAP Tool, Tracklander rack, Mitch Hitch, TPMS & Safari Snorkel

  3. #3
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    275/65 is the tallest you can feasibly go. I have these and they do rub a bit, even after mods. The D4 running gear is not made for anything bigger anyway and there aren't upgrade options.

  4. #4
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    Quote Originally Posted by rocket rod View Post
    First check what you can legally put on with the state authority. Going too big could be illegal. Have you seen this spreadsheet?
    18in tyre choices.xlsx
    thanks for the tyre file

  5. #5
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    Quote Originally Posted by TuffRR View Post
    275/65 is the tallest you can feasibly go. I have these and they do rub a bit, even after mods. The D4 running gear is not made for anything bigger anyway and there aren't upgrade options.
    My new to me but old D4 acquisition (with LLAMS), is shod with 285/60R18 = 31.5 diameter. Not been off road yet, but fine around town.

    275/65R18 is I think 32.1 diameter
    Last edited by gavinwibrow; 17th April 2019 at 06:07 PM. Reason: cant read charts
    MY16 D4 TDV6 - with a little Cambo magic for towing "The Brick"
    MY95 RRC LSE Vogue Softdash "Bessie" (turning circle comparable to QE II) with MY99 TD5 and 4HP24 transplants. Back home Nov 22 after a magic overhaul by Chivalry
    SADLY SOLD MY04 D2a TD5 auto Classic and MY10 D4 2.7 both with lots of goodies

  6. #6
    discorevy is offline ChatterBox Silver Subscriber
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    Quote Originally Posted by gavinwibrow View Post
    My new to me but old D4 acquisition (with LLAMS), is shod with 285/60R18 = 31.5 diameter. Not been off road yet, but fine around town.

    275/65R18 is I think 32.1 diameter

    When you get a chance , check speedo with gps to make sure the speedo has been adjusted in the vehicles car config files to suit the bigger tyre size, otherwise you might pick up a fine , if it hasn't your speedo will under read by around 3% .
    cheers

  7. #7
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    I have 265/65/18 and my speedo is 100% accurate at 100kph WITHOUT any adjustments to the config files. What is now inaccurate is the odometer as it shows let kn]ms than what has been traveled. Rather have an accurate speedo than odometer!!!
    2016.5 TDV6 Graphite D4,Corris Grey,APT sliders,Goe air comp plate,UHF & HF radio,Airflow snorkel,Discrete Winch,Compo rims with 265/65/18 KO, LLAMs,Traxide dual battery with winch set up,EAS emergency kit,Mitch Hitch EGR blank & delete,ECU remap

  8. #8
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    Quote Originally Posted by discorevy View Post
    When you get a chance , check speedo with gps to make sure the speedo has been adjusted in the vehicles car config files to suit the bigger tyre size, otherwise you might pick up a fine , if it hasn't your speedo will under read by around 3% .
    cheers
    Thanks Craig - has been on my mind and will check it out en route to Nirvana next week!
    MY16 D4 TDV6 - with a little Cambo magic for towing "The Brick"
    MY95 RRC LSE Vogue Softdash "Bessie" (turning circle comparable to QE II) with MY99 TD5 and 4HP24 transplants. Back home Nov 22 after a magic overhaul by Chivalry
    SADLY SOLD MY04 D2a TD5 auto Classic and MY10 D4 2.7 both with lots of goodies

  9. #9
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    The last three sets have been 285/60/18. I like the size and will continue with it.

    However, the first two- Dunlop AT22 and Bridgestone A/T 697s- had only limited rubbing on the guards when articulated. But the current set- Toyo Open Country R/Ts rub a bit more. I've noted a rub on the cable split tube on the inner guard of the front left.

    I think two reasons:

    1. The Dunlops and B/Stones were second hand (wanted to try the size before purchasing, NB: usually lots of 285/60/18 Dunlop AT22's on Gumtree from LC 200 people ditching for upgrades, I got 6 tyres with 50-60% left for $150.00 the lot) so they had worn some what.

    2. The Toyos have a very square tread with aggressive shoulder lugs. Which is the area doing the rubbing on the cable.

    Some Comments: The 285/60/18 go well off road. My fuel consumption has increased from the originals. The size should be reasonably available as is a LC standard size. The speedo is fractionally slow (not sure which way you say it) at 100 on the dial I'm doing 102-103.

  10. #10
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    Quick Q, how commonly available is the 265/65-18?

    It seens like a really nice compromise in aspect ratio/diameter but from a casual look the 265/60-18 is on every manufacturers size chart but far fewer in 265/65

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