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Thread: Tire size question

  1. #1
    Member JonsMustang's Avatar
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    Tire size question

    Got 255/40-19s factory OEM tires on my 13 GT. Would 245/50R19 fit?

  2. #2
    Club Supporter Old Fart's Avatar
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    I use this site often...https://tiresize.com/calculator/ The newer tire diameter would be approx. 1.6 inches more.
    Mike

    04 GT
    89 LX...bye-bye!!
    67 Cougar x 2...should have kept them!

  3. #3
    Super Moderator newbiestangowner's Avatar
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    replied to in chat box ^^ these are factory 245/45- before lowering if not lowered than I think u have room with 245/50's


    2014 GT- MT 82, 3.73,Roush a/b, Forgestar f14 19x9/10 firestone firehawk indy 500- 255 F /285 R ,BMR springs sp009, pan hard, koni yellows ,m/m caster,
    MGW XSPEC low profile 2.625in throw
    slo turd 5.0, even slower driver

  4. #4
    Member JonsMustang's Avatar
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    My bad....2013-Ford-Mustang-GT-Track-Pack-front-wheel.jpg these are mines, rolling 255/40-R19

  5. #5
    Member JonsMustang's Avatar
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    rolling 255/40-R19 summer and 245/40-R19 Winters

  6. #6
    tulowd
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    Going taller and narrower doesn't make any sense.....unless its for snow tires and you have plenty of inner fender /turning radius clearance and want to increase ground clearance.

    Tires need to be mounted on wheels that are 1) ideal width or 2) within the acceptable range of rim width limits the manufacturer specifies

    Different brands of tires use different carcasses and sizes, so not all tires are the same dimensions or have the same wheel requirements between brands and even models/types.

    I use this Tirerack for most tire / sizing research. Start with the OEM fitment and their recommendations; sometimes tires are specific to a particular vehicle.
    http://www.tirerack.com/content/tire.../en/tires.html

    Then have a look at this: http://www.tirerack.com/tires/sizes/...sp?diameter=19

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