Topic: 31x10.5 tyres and speedo?? (Read 6039 times)

nick69 · « **on:** August 28, 2006, 03:30:47 PM »

Guys,

will I have to change the speedo cog when putting 31x10.5 tyres on my standard TJ??

Thanks
Nick

Mike Pavelin · « **Reply #1 on:** August 28, 2006, 04:03:47 PM »

Check your speedo with a GPS and see. They read 5-10 percent high as standard so you might get away with it.

nick69 · « **Reply #2 on:** August 28, 2006, 04:27:02 PM »

I dont have GPS

Manda · « **Reply #3 on:** August 28, 2006, 05:06:18 PM »

From what I can gather you can't actually get a speedo cog which puts your speedo right for 31's. (I think the cog for 30's is the nearest) but I have been running on 31's for years wihout redoing the speedo, I just allow at least 10%. So do 26ish in a 30, 35ish in a 40 etc. Been fine so far. (Touch wood and all that. :lol:

)

Mike Pavelin · « **Reply #4 on:** August 28, 2006, 05:21:37 PM »

My TJ speedo was spot on with 31s, about 5% over with stock tyres.

nick69 · « **Reply #5 on:** August 28, 2006, 05:39:01 PM »

Job done then, I wont give it another thought

Anonymous · « **Reply #6 on:** August 28, 2006, 05:54:55 PM »

Mine was almost spot on with 31's with the factory cog in (29 tooth)

EE

Rikk · « **Reply #7 on:** August 28, 2006, 06:27:36 PM »

There ya go try here :-

http://www.go.jeep-xj.info/HowtoSpeedoGears.htm

MOCAJ · « **Reply #8 on:** August 28, 2006, 07:29:36 PM »

Quote from: "Mike Pavelin"

My TJ speedo was spot on with 31s, about 5% over with stock tyres.

Author Topic: 31x10.5 tyres and speedo?? (Read 6039 times)

nick69

31x10.5 tyres and speedo??

Mike Pavelin

(No subject)

nick69

(No subject)

Manda

(No subject)

Mike Pavelin

(No subject)

nick69

(No subject)

Anonymous

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Rikk

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MOCAJ

(No subject)