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Author
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Topic: tire size to speedo ratio
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adragon8u
Gearhead Posts: 4857
From: Oceano, Ca. member# 2895
Registered: Mar 2003
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posted 04-03-2004 11:21 AM
   
Ok, I've searched the archives but haven't had any luck, so here goes. My speedo reads about 7 mph faster than I'm actually doing.
My rear tires are p175/75/14. Are those too tall? and would that cause the speedo reading to be too high? Would I be better to go with maybe 215/60/14?
Thanks for your time.------------------
"I started with nothing, and I still have most of it left"
http://webpages.charter.net/adragon8u/mystang
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65ponycar
Gearhead Posts: 748
From: Dayton, OH
Registered: Jul 2003
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posted 04-03-2004 01:53 PM
Unless you want to (or need!) to change your tire height you could always change your speedo gear which is fairly easy to do, and a whole lot cheaper.
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adragon8u
Gearhead Posts: 4857
From: Oceano, Ca. member# 2895
Registered: Mar 2003
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posted 04-03-2004 02:06 PM
is that gear replaced at the tranny or at the dash?------------------
"I started with nothing, and I still have most of it left"
http://webpages.charter.net/adragon8u/mystang
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Fastymz
Moderator Posts: 18590
From: Reno Nv USA MEM#1240
Registered: Apr 2001
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posted 04-03-2004 02:08 PM
At the trans you have to remove the speed-o cable from the trans.------------------
SCOOP oddly obsessed with big scoops on little Mustangs 65 coupe,351w,C4,Big Boss 429 hood scoop,8" 3.40 TracLoc. My Pics
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