Topic: 31x10.5 tyres and speedo?? (Read 7894 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 7894 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

(No subject)

Rikk

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MOCAJ

(No subject)