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Topic: Speedometer gear

in Forum: C3 Driveline Components


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Speedometer gear

Posted: 8/30/12 12:40pm Message 1 of 4
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dapperdan
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COLUMBUS, NC - USA
Joined: 8/19/2012
Posts: 42
Vette(s): 2011 Grand Sport Coupe, 6-speed 1977 Coupe L82, 4-speed
I'm gonna change the differential from a 3.70 to a 3.36 on my '77 L-82 4-speed.  It's gonna need a different speed-o gear.  I assume that it will be a smaller gear than what's in the tranny now.  Does anyone know which one will get my speed-o back to accurate after the gear change?


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Re: Speedometer gear

Posted: 8/30/12 5:01pm Message 2 of 4
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corvette440hp
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corvette440hp

Re: Speedometer gear

Posted: 8/30/12 5:04pm Message 3 of 4
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corvette440hp
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From the above chart you'll need the 18 tooth (#3987918) brown gear.

|UPDATED|8/30/2012 5:04:11 PM (AZT)|/UPDATED|



corvette440hp

Re: Speedometer gear

Posted: 9/1/12 4:36pm Message 4 of 4
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dapperdan
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COLUMBUS, NC - USA
Joined: 8/19/2012
Posts: 42
Vette(s): 2011 Grand Sport Coupe, 6-speed 1977 Coupe L82, 4-speed
Thank you very much.   That's gonna save me a lot of trouble.


in Forum: C3 Driveline Components


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