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Unread 12-06-2011, 05:49 PM   #1
ONeil1234
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215 tires mess up speedometer?

I just bought my jeep about a month ago and the guy just recently installed some 215/70r16's on my jeep. When im on the highway and going 120kph i usually pass all the cars infront of me with my girlfirends accord. But with this jeep im going 120 and everyone is passing me. Just wondering if smaller tires like that can throw of the speedometer and make it seem like im going faster when im not. Also can having smaller tires than recommended in the manual hurt anything on my jeep? Thanks

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Unread 12-06-2011, 06:16 PM   #2
KoreaZJ
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Smaller tires, actual speed is slower than speedo displays.
Put a GPS in there and compare the speed.
Previous owners may have changed the speedo gear.
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Unread 12-06-2011, 06:35 PM   #3
ONeil1234
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yea thats what i was implying when i said everyone was passing me in my jeep. This guy wasnt the kind of guy to change the speedo gear( im guessing that means rear gear ratio?) Can having smaller tires hurt anything mechanically?
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Unread 12-06-2011, 06:39 PM   #4
PolkaPower
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No they are fine. My speedo is 2-3 MPH slower according to my GPS with larger tires. Speedometers are not accurate anyway.
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Unread 12-06-2011, 06:41 PM   #5
KoreaZJ
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Won't hurt anything.
My 94 came stock with 215's. Then I changed to 225, then 235, now LT30X9.50
Make sure they're all the same size, especially if you have an NP249 tcase.
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Unread 12-06-2011, 07:24 PM   #6
ONeil1234
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ok thanks lads.
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Unread 12-06-2011, 09:48 PM   #7
ONeil1234
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just a quick question, im doing some minor front end work ( end links, sway bar bushings, shocks) this weekend and i was wondering if i need lube up those bushings with grease before i install them?
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Unread 12-07-2011, 10:04 PM   #8
ONeil1234
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I just got done spraying some rust loostener for the bolts on my end links and shocks, and i was looking at the top of the stock shock and there doesnt seem to be a bolt or anything to unscrew up top....is it hiddin up underneath the fender liner?? or do you have to undew the bolt by opening hood and coming from the top through the engine?
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Unread 12-08-2011, 02:05 PM   #9
isenior
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I'm on 225 70 16 and my speedo reads 5 mph higher than my sat nav says I'm going.
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Unread 12-08-2011, 02:21 PM   #10
moggie99
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Quote:
Originally Posted by ONeil1234 View Post
I just got done spraying some rust loostener for the bolts on my end links and shocks, and i was looking at the top of the stock shock and there doesnt seem to be a bolt or anything to unscrew up top....is it hiddin up underneath the fender liner?? or do you have to undew the bolt by opening hood and coming from the top through the engine?
This one
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Unread 12-08-2011, 02:23 PM   #11
ONeil1234
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k thanks
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Unread 12-08-2011, 03:25 PM   #12
ONeil1234
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does anyone have any advice on the easiest way to take off the front left ( drivers side) shock with all the brake fluid lines and resivoir?
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Unread 12-08-2011, 03:31 PM   #13
ratmonkey
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Quote:
Originally Posted by ONeil1234 View Post
does anyone have any advice on the easiest way to take off the front left ( drivers side) shock with all the brake fluid lines and resivoir?
extenstions and wobbles.
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