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What Speedometer gear do I need for 33" tires on my YJ

Discussion in 'Wrangler YJ (1986-1995)' started by GUARDDOGG, Aug 30, 2017.

  1. Aug 30, 2017 at 8:07 AM
    #1
    GUARDDOGG

    GUARDDOGG [OP] Member

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    Ground up rebuilding
    Well I got the 1994 YJ on the road & legal. My issue now is no matter what speed I'm doing the speedometer reads 39mph.
    I am running 33" tires now.
    Does anyone know what what number of teeth/ gear I need to swap in order to get a more accurate speedo?

    Thanks guys
     
  2. Aug 30, 2017 at 11:07 AM
    #2
    Bob

    Bob Well-Known Member Moderator

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    Welcome! Sub'd for answers from the guys and girls more knowledgeable than myself...
     
    GUARDDOGG [OP] and JKBob 25 like this.
  3. Aug 31, 2017 at 8:08 AM
    #3
    OFFGRID

    OFFGRID Well-Known Member

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    1979 Jeep CJ7, 258, TH350, NP208
    Howell fuel injection, header, HEI distributor, TH350, NP208, SOA lift with YJ springs in the front & GW springs in the Rear. AMC20 with G2 1 piece chromos trussed, Dana 30 with G2 chromos and 760x ujoints and MM Stainless Hubs, Geared 4.56. Tom Woods shafts, Metal cloaks, Caged, 37" Toyo MTs.
    Sound like you have more than a gear issue if you are always reading 39mph I believe first you need to replace the sensor that sits on the gear.
     
    GUARDDOGG [OP] likes this.
  4. Aug 31, 2017 at 7:11 PM
    #4
    JKBob 25

    JKBob 25 Well-Known Member

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    I'm sorry Bob. As I'm sure you know. Ive been a member here for a few months now. And some thing I've come to notice. It seems ALL our members are more knowledgeable than you are. Lolll. I'm curious as to why we keep you around. o_O. Are you one of those Taco owners??. If so....i beleive there is a site for you guyzz. I beleive your time would be much better spent there.lolll. :) . But thanks for hangin out. :hattip:.

    Sorry. Didn't mean to hijack the thread. :jeepwave:
     
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  5. Aug 31, 2017 at 8:07 PM
    #5
    GUARDDOGG

    GUARDDOGG [OP] Member

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    1994 YJ
    Ground up rebuilding
    Thanks OG.
    I guess I'll take a look at that, thanks for giving me a place to start.

    IMG_0078.jpg
     
    aggrex, JKBob 25 and OFFGRID like this.
  6. Sep 1, 2017 at 8:06 AM
    #6
    OFFGRID

    OFFGRID Well-Known Member

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    First Name:
    Peter
    Houston
    Vehicle:
    1979 Jeep CJ7, 258, TH350, NP208
    Howell fuel injection, header, HEI distributor, TH350, NP208, SOA lift with YJ springs in the front & GW springs in the Rear. AMC20 with G2 1 piece chromos trussed, Dana 30 with G2 chromos and 760x ujoints and MM Stainless Hubs, Geared 4.56. Tom Woods shafts, Metal cloaks, Caged, 37" Toyo MTs.
    Very nice looking YJ!
     
    JKBob 25 likes this.
  7. Sep 2, 2017 at 7:43 PM
    #7
    JKBob 25

    JKBob 25 Well-Known Member

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    2" Superlift kit. 315/ 70/17.
    Just bustin dude. Hope I didn't offend you. :)
     
    Bob likes this.
  8. Sep 2, 2017 at 7:45 PM
    #8
    JKBob 25

    JKBob 25 Well-Known Member

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    2" Superlift kit. 315/ 70/17.
    Who's your "Guard Dog". ? You have him / her posted in the "post your pets" thread?
     
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