Speedo is now off..
#1
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Join Date: Apr 2004
Location: Boscobel, Wisconsin
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Car: 1987 Iroc-Z
Engine: 355
Transmission: 700r4 w/ about 7500 miles on rebuild
Speedo is now off..
Hey, not sure if this fits here. My car had fourteens all around. I put cooper cobra radial gts on my car. P145 60R14 on front and P155 60R15 in the back, rims are sized accordingly. My speedo is no around five mph off (well, it says im going 60 when i am goin 65-friends checked me out w/ five different vehicles, all brand new) I know nothing about the gauge situation in my car... So i could use a little advice on how to remedy my problem
PS. Sorry about this post being so gramatically challenged.. Im rushing around today
PS. Sorry about this post being so gramatically challenged.. Im rushing around today
#3
Yeah, you need to know your rear end gear ratio, and the size of your ties and you cna calculate the correct speedometer gears. Just post them here and someone will tell you what you need.
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