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Topic: Speedometer gear question??

in Forum: C3 Driveline Components


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Speedometer gear question??

Posted: 6/23/03 8:15pm Message 1 of 5
CHAYER
Former Member
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MT PLEASANT, MI - USA
Joined: 11/12/2002
Posts: 3
Vette(s): 1980 RED CHEVY CORVETTE
I changed my Tire size from stock size 225/70r15 to 255/60r15 how do you calculate this to get the right colored gear for the speedometer??


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Speedometer gear question??

Posted: 6/23/03 9:02pm Message 2 of 5
82dukman
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Joined: 1/29/2002
Posts: 1049
Actually the cahnge showing on your speedo is neglible. it should only read about 1 MPH faster at 60 MPH


Speedometer gear question??

Posted: 6/23/03 9:25pm Message 3 of 5
CHAYER
Former Member
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MT PLEASANT, MI - USA
Joined: 11/12/2002
Posts: 3
Vette(s): 1980 RED CHEVY CORVETTE
At 55 mph my speedo reads 65 mph so maybe the previous owner changed the gear i know stock is 3:08, I just figured it was the tires?


Speedometer gear question??

Posted: 6/23/03 10:13pm Message 4 of 5
82dukman
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Joined: 1/29/2002
Posts: 1049
Check your email |wavey|


Speedometer gear question??

Posted: 6/24/03 10:58pm Message 5 of 5
CHAYER
Former Member
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MT PLEASANT, MI - USA
Joined: 11/12/2002
Posts: 3
Vette(s): 1980 RED CHEVY CORVETTE
Thanks for all the great info, I also will be looking to get that 140 mph speedometer thru Red line.


in Forum: C3 Driveline Components


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