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Speedo Correction?

Discussion in '5th Gen 4Runners (2010-2024)' started by boomie, Nov 4, 2025 at 5:33 PM.

  1. Nov 4, 2025 at 5:33 PM
    #1
    boomie

    boomie [OP] New Member

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    2014 4Runner Limited
    Hey yall

    I drive a 4Runner Limited 2014 and just moved down from 245/60/20 tires to 255/45/20 tires, and am wondering if there is any easy way to recalibrate my speedometer and odometer, as my overall diameter has gone down(about 92% of what it used to be). I went to Toyota, and they said they don't do that, but I'm wondering if there is an ECU plugin I can use. I searched the internet for a while, but didn't find any that let me conclusively say it would work on my 4Runner. Any ideas? thx!
     
    Last edited: Nov 4, 2025 at 6:13 PM
  2. Nov 4, 2025 at 5:35 PM
    #2
    Steely123

    Steely123 What's the new trend? I'll do it!

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    Welcome
     
    djwantke likes this.
  3. Nov 4, 2025 at 5:44 PM
    #3
    Dillusion

    Dillusion Resident A**h***

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    Island in the Middle of the Ocean
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    Actually only 8.15%

    Just gotta watch it.
     
  4. Nov 4, 2025 at 5:50 PM
    #4
    BS67

    BS67 8404 USMC Doc

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  5. Nov 4, 2025 at 5:56 PM
    #5
    semprenissart

    semprenissart Mèfi

    Joined:
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    AT3W 275/70R17 Westcott Sliders Gobi no rise
    That's assuming the speedo is accurate to begin with.

    I noticed that OEM size is already slightly off. On mine, going up from 265/70r17 to 275/70r17 fixed that and made the speedo spot on.
    It use to read 75 mph at 72. Now 72 is 72.

    so going down a size might have made it even worse?
     
    icebear and Old Tanker like this.
  6. Nov 4, 2025 at 6:16 PM
    #6
    djwantke

    djwantke New Member

    Joined:
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    Maple Ridge, British Columbia
    Vehicle:
    2016 4Runner Trail Premium
    Bought brand new 2016 After May 2021: -Approx 3" lift/level: Bilstein 5100's, OME 2884 590lb 3" front lift springs, SPC UCA's, ICON 158506 2" lift rear coils, diff drop -Mickey Thompson Baja ATZ LT285/70R17 Load E -Mickey Thompson Sidebiter ll 17x9, 0 offset, 5 backspace -Pro Comp black spline lugs ^installed by 4WheelParts^ -New brakes and rotors by brake shop -4-piece ARB skid kit -Smittybilt 2" nerf steps -MBRP black exhaust tip, chopped OEM -Drivers side OEM FJ oh shit handle -All blacked out emblems -Blacked out roof rails -4x WeatherTech window rain guards -OEM custom rear mud flap deletes -KICK BACK MUD FLAPS 12" WIDE - BLACK TOP AND BLACK WEIGHT -FRAM EXTRA GUARD CA10835 engine air filter -1797 LED tricolor fog bulbs Yellow 3000K White 6000K Blue 15000K 28W 4000LM -Armour paint lower rear bumper -Front bumper high stage high clearance cut -Fenders cut straight across, pink reservoir sprayed black -4Runner Lifestyle sequential fog fangs -4Runner Lifestyle smoked taillight decals -Pedal Commander -Rear passenger cargo mounted 120v truck tire pump -4x Spidertrax 1.25" black aluminum wheel spacers -Yota Twins Paracord Hatch Strap sand camo -Teton Workshop hard anodized matte black aluminum shift knob -Ditch flood lights 4 LED 20w 1400lm w/ OEM hood mounts on OEM style dash switch -Backup flood lights under bumper 6 LED 18w 1500lm on OEM style dash switch -Body Mount Chop; cut, weld, paint -Fender mount chop, re-weld, paint -Fender Liner cut behind wheel (I cut liner in front of wheel clean off at top of viper cut) -Wheel well firewall hammering, painting ^done by Arc One Industries^ -valance cap trim -Agency6 Black Shackle Block 2" US Certified 6061 T6 CNC machined aluminum -DRT fab universal hitch skid -ACDelco inner tie rods, outer tie rods, bellows -Full Dr. KDSS switch kit -March 31 Behind grille 13-1/4" 32 LED light bar + wide-angle, eagle-eye lens 6000lm on OEM style dash switch -RAA Powder coated steel roof rack cargo basket, 1" side rails, 64" x 39" x 6", 250lb limit -roof gas can, water can, shovel -PEAKTOW PTT0063 Hitch Mount Cargo Carrier 51-1/2 x 17-1/2 x 4 inches 500 lbs. Capacity (trips only) -July/2023: purchased first needed SPC balljoint replacement kit - newly released, upgraded non-zerk sealed joints 25002 -July 15/2023: The Original Universal EZ Flares, 1". All four corners -Dec. 2023: removed bumper cover and crash bar, drilled frame, installed Apex Overland KDSS Recovery Points -Jan. 2024: SPC balljoint replacement kit - upgraded non-zerk sealed joint design 25002 -Jan. 2024: custom installed 2lb fire extinguisher between drivers seat and door -Feb. 2024: swapped interior lighting to diode dynamics led’s -Feb. 3/ 2024: 4x KC Wire Hiders, for roof rack lighting -Feb. 13/2024: double ditch lights, on new Rago Fabrication Extension brackets. -3inch Quad Row Amber Pods from LED-Club. 32W 3200Lm 16-LED Spot Beam. Existing: 3inch EVERGEAR clear lens LED pods -May 2024: custom black aluminum grille mesh installed in front of factory plastic -June 2024: custom built powder coated dom sliders -Nov. 2024: thermo-plastic rear mudflaps -Dec. 2024: rear bumper cover clearance cut, sprayed newly exposed parts black -Jan. 2025: trailer hitch removal, relocation of rear led pods to crossmember New: -Exhaust pipe chop after axle -March 2025: new SPC upper control arms, bushings, balljoints. Raised front end 0.75” via Bilstein 5100 spring seat. -April 2025: Evergear bezel-less cube ditch lights 4 LEDs 40W 3.33A 4800Lm 328’ beam distance 30° 6000k beam angle shatter & crack resistant lens -April 2025: Evergear Ultra Series light bar 27-3/4” flood spot combo 60 LEDs 60W 5A 6000Lm 1227’ beam distance Dual row, dual beam angle 30°/60° April 2025: BULLY Rock Crawler Hi-Intensity LED Utility Lights, Pair 1260 lumens @ 15w (3 x 5w CREE) each 120° flood beam waterproof, dustproof. Under hood: -Blue Fire 6-Circuit Fuse Block w/ LED Indicator & Protection Cover -Blue Sea 100A Circuit Breaker w/ reset lever In progress/in the garage queue: ~ Wanted - 80% OFFROAD Hitch Replacement Recovery Point, PerryParts or Wheelers bump stops, 1" body lift, custom dom front bumper, winch, rear dom bumper with side hoops, kdss angle correction, C or D load 35’s, bolt on cat shields
    From everything you wrote one can deduce a logical conclusion of not doing this thing
     
  7. Nov 4, 2025 at 6:19 PM
    #7
    djwantke

    djwantke New Member

    Joined:
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    Messages:
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    Maple Ridge, British Columbia
    Vehicle:
    2016 4Runner Trail Premium
    Bought brand new 2016 After May 2021: -Approx 3" lift/level: Bilstein 5100's, OME 2884 590lb 3" front lift springs, SPC UCA's, ICON 158506 2" lift rear coils, diff drop -Mickey Thompson Baja ATZ LT285/70R17 Load E -Mickey Thompson Sidebiter ll 17x9, 0 offset, 5 backspace -Pro Comp black spline lugs ^installed by 4WheelParts^ -New brakes and rotors by brake shop -4-piece ARB skid kit -Smittybilt 2" nerf steps -MBRP black exhaust tip, chopped OEM -Drivers side OEM FJ oh shit handle -All blacked out emblems -Blacked out roof rails -4x WeatherTech window rain guards -OEM custom rear mud flap deletes -KICK BACK MUD FLAPS 12" WIDE - BLACK TOP AND BLACK WEIGHT -FRAM EXTRA GUARD CA10835 engine air filter -1797 LED tricolor fog bulbs Yellow 3000K White 6000K Blue 15000K 28W 4000LM -Armour paint lower rear bumper -Front bumper high stage high clearance cut -Fenders cut straight across, pink reservoir sprayed black -4Runner Lifestyle sequential fog fangs -4Runner Lifestyle smoked taillight decals -Pedal Commander -Rear passenger cargo mounted 120v truck tire pump -4x Spidertrax 1.25" black aluminum wheel spacers -Yota Twins Paracord Hatch Strap sand camo -Teton Workshop hard anodized matte black aluminum shift knob -Ditch flood lights 4 LED 20w 1400lm w/ OEM hood mounts on OEM style dash switch -Backup flood lights under bumper 6 LED 18w 1500lm on OEM style dash switch -Body Mount Chop; cut, weld, paint -Fender mount chop, re-weld, paint -Fender Liner cut behind wheel (I cut liner in front of wheel clean off at top of viper cut) -Wheel well firewall hammering, painting ^done by Arc One Industries^ -valance cap trim -Agency6 Black Shackle Block 2" US Certified 6061 T6 CNC machined aluminum -DRT fab universal hitch skid -ACDelco inner tie rods, outer tie rods, bellows -Full Dr. KDSS switch kit -March 31 Behind grille 13-1/4" 32 LED light bar + wide-angle, eagle-eye lens 6000lm on OEM style dash switch -RAA Powder coated steel roof rack cargo basket, 1" side rails, 64" x 39" x 6", 250lb limit -roof gas can, water can, shovel -PEAKTOW PTT0063 Hitch Mount Cargo Carrier 51-1/2 x 17-1/2 x 4 inches 500 lbs. Capacity (trips only) -July/2023: purchased first needed SPC balljoint replacement kit - newly released, upgraded non-zerk sealed joints 25002 -July 15/2023: The Original Universal EZ Flares, 1". All four corners -Dec. 2023: removed bumper cover and crash bar, drilled frame, installed Apex Overland KDSS Recovery Points -Jan. 2024: SPC balljoint replacement kit - upgraded non-zerk sealed joint design 25002 -Jan. 2024: custom installed 2lb fire extinguisher between drivers seat and door -Feb. 2024: swapped interior lighting to diode dynamics led’s -Feb. 3/ 2024: 4x KC Wire Hiders, for roof rack lighting -Feb. 13/2024: double ditch lights, on new Rago Fabrication Extension brackets. -3inch Quad Row Amber Pods from LED-Club. 32W 3200Lm 16-LED Spot Beam. Existing: 3inch EVERGEAR clear lens LED pods -May 2024: custom black aluminum grille mesh installed in front of factory plastic -June 2024: custom built powder coated dom sliders -Nov. 2024: thermo-plastic rear mudflaps -Dec. 2024: rear bumper cover clearance cut, sprayed newly exposed parts black -Jan. 2025: trailer hitch removal, relocation of rear led pods to crossmember New: -Exhaust pipe chop after axle -March 2025: new SPC upper control arms, bushings, balljoints. Raised front end 0.75” via Bilstein 5100 spring seat. -April 2025: Evergear bezel-less cube ditch lights 4 LEDs 40W 3.33A 4800Lm 328’ beam distance 30° 6000k beam angle shatter & crack resistant lens -April 2025: Evergear Ultra Series light bar 27-3/4” flood spot combo 60 LEDs 60W 5A 6000Lm 1227’ beam distance Dual row, dual beam angle 30°/60° April 2025: BULLY Rock Crawler Hi-Intensity LED Utility Lights, Pair 1260 lumens @ 15w (3 x 5w CREE) each 120° flood beam waterproof, dustproof. Under hood: -Blue Fire 6-Circuit Fuse Block w/ LED Indicator & Protection Cover -Blue Sea 100A Circuit Breaker w/ reset lever In progress/in the garage queue: ~ Wanted - 80% OFFROAD Hitch Replacement Recovery Point, PerryParts or Wheelers bump stops, 1" body lift, custom dom front bumper, winch, rear dom bumper with side hoops, kdss angle correction, C or D load 35’s, bolt on cat shields
    admin’s should add New Member Welcome Messages to the notable members leadership board, it’s a tight race at the top!

    https://www.4runners.com/members/
     
    Steely123[QUOTED] likes this.
  8. Nov 5, 2025 at 2:04 AM
    #8
    Steely123

    Steely123 What's the new trend? I'll do it!

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    It's the only valuable thing I have to contribute.
    Kinda a one trick pony here.
     
    djwantke[QUOTED] likes this.
  9. Nov 5, 2025 at 2:41 AM
    #9
    Toy4X4

    Toy4X4 New Member

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    Welcome from Wisconsin!
     
  10. Nov 5, 2025 at 3:28 AM
    #10
    JET4

    JET4 Old Member

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  11. Nov 5, 2025 at 6:16 AM
    #11
    glwood54

    glwood54 Stop making me buy stuff!

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    So going from a 32" (31.58) to a 29" tire? That's has to look a bit odd on a 4R I would think.
     
  12. Nov 5, 2025 at 6:37 AM
    #12
    djwantke

    djwantke New Member

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    Vehicle:
    2016 4Runner Trail Premium
    Bought brand new 2016 After May 2021: -Approx 3" lift/level: Bilstein 5100's, OME 2884 590lb 3" front lift springs, SPC UCA's, ICON 158506 2" lift rear coils, diff drop -Mickey Thompson Baja ATZ LT285/70R17 Load E -Mickey Thompson Sidebiter ll 17x9, 0 offset, 5 backspace -Pro Comp black spline lugs ^installed by 4WheelParts^ -New brakes and rotors by brake shop -4-piece ARB skid kit -Smittybilt 2" nerf steps -MBRP black exhaust tip, chopped OEM -Drivers side OEM FJ oh shit handle -All blacked out emblems -Blacked out roof rails -4x WeatherTech window rain guards -OEM custom rear mud flap deletes -KICK BACK MUD FLAPS 12" WIDE - BLACK TOP AND BLACK WEIGHT -FRAM EXTRA GUARD CA10835 engine air filter -1797 LED tricolor fog bulbs Yellow 3000K White 6000K Blue 15000K 28W 4000LM -Armour paint lower rear bumper -Front bumper high stage high clearance cut -Fenders cut straight across, pink reservoir sprayed black -4Runner Lifestyle sequential fog fangs -4Runner Lifestyle smoked taillight decals -Pedal Commander -Rear passenger cargo mounted 120v truck tire pump -4x Spidertrax 1.25" black aluminum wheel spacers -Yota Twins Paracord Hatch Strap sand camo -Teton Workshop hard anodized matte black aluminum shift knob -Ditch flood lights 4 LED 20w 1400lm w/ OEM hood mounts on OEM style dash switch -Backup flood lights under bumper 6 LED 18w 1500lm on OEM style dash switch -Body Mount Chop; cut, weld, paint -Fender mount chop, re-weld, paint -Fender Liner cut behind wheel (I cut liner in front of wheel clean off at top of viper cut) -Wheel well firewall hammering, painting ^done by Arc One Industries^ -valance cap trim -Agency6 Black Shackle Block 2" US Certified 6061 T6 CNC machined aluminum -DRT fab universal hitch skid -ACDelco inner tie rods, outer tie rods, bellows -Full Dr. KDSS switch kit -March 31 Behind grille 13-1/4" 32 LED light bar + wide-angle, eagle-eye lens 6000lm on OEM style dash switch -RAA Powder coated steel roof rack cargo basket, 1" side rails, 64" x 39" x 6", 250lb limit -roof gas can, water can, shovel -PEAKTOW PTT0063 Hitch Mount Cargo Carrier 51-1/2 x 17-1/2 x 4 inches 500 lbs. Capacity (trips only) -July/2023: purchased first needed SPC balljoint replacement kit - newly released, upgraded non-zerk sealed joints 25002 -July 15/2023: The Original Universal EZ Flares, 1". All four corners -Dec. 2023: removed bumper cover and crash bar, drilled frame, installed Apex Overland KDSS Recovery Points -Jan. 2024: SPC balljoint replacement kit - upgraded non-zerk sealed joint design 25002 -Jan. 2024: custom installed 2lb fire extinguisher between drivers seat and door -Feb. 2024: swapped interior lighting to diode dynamics led’s -Feb. 3/ 2024: 4x KC Wire Hiders, for roof rack lighting -Feb. 13/2024: double ditch lights, on new Rago Fabrication Extension brackets. -3inch Quad Row Amber Pods from LED-Club. 32W 3200Lm 16-LED Spot Beam. Existing: 3inch EVERGEAR clear lens LED pods -May 2024: custom black aluminum grille mesh installed in front of factory plastic -June 2024: custom built powder coated dom sliders -Nov. 2024: thermo-plastic rear mudflaps -Dec. 2024: rear bumper cover clearance cut, sprayed newly exposed parts black -Jan. 2025: trailer hitch removal, relocation of rear led pods to crossmember New: -Exhaust pipe chop after axle -March 2025: new SPC upper control arms, bushings, balljoints. Raised front end 0.75” via Bilstein 5100 spring seat. -April 2025: Evergear bezel-less cube ditch lights 4 LEDs 40W 3.33A 4800Lm 328’ beam distance 30° 6000k beam angle shatter & crack resistant lens -April 2025: Evergear Ultra Series light bar 27-3/4” flood spot combo 60 LEDs 60W 5A 6000Lm 1227’ beam distance Dual row, dual beam angle 30°/60° April 2025: BULLY Rock Crawler Hi-Intensity LED Utility Lights, Pair 1260 lumens @ 15w (3 x 5w CREE) each 120° flood beam waterproof, dustproof. Under hood: -Blue Fire 6-Circuit Fuse Block w/ LED Indicator & Protection Cover -Blue Sea 100A Circuit Breaker w/ reset lever In progress/in the garage queue: ~ Wanted - 80% OFFROAD Hitch Replacement Recovery Point, PerryParts or Wheelers bump stops, 1" body lift, custom dom front bumper, winch, rear dom bumper with side hoops, kdss angle correction, C or D load 35’s, bolt on cat shields
    He’s ridin’ 20’s tho mind you

     
  13. Nov 5, 2025 at 6:59 AM
    #13
    glwood54

    glwood54 Stop making me buy stuff!

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    That's sorta my point. 32" 20's already look iffy. 29" 20's?? What's that, about 4" of sidewall?
     
    Last edited: Nov 5, 2025 at 3:24 PM
  14. Nov 5, 2025 at 11:12 AM
    #14
    Rocko9999

    Rocko9999 New Member

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    2011 Limited, running stock 20's and 17" ORP with stock tire sizes, my speedometer is off by a couple mph. Reads 67mph when doing 65mph.
     

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