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Old Apr 17, 2012 | 12:19 AM
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Default c4 speedometer

I put a zf6 speed in my 85 speedometer is reading about 10% too high. Right now it has the original gear in ZF with a 42T driven gear . Anyone know what gear to put in and where to get said gear? Thanks
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Old Apr 17, 2012 | 12:38 AM
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http://www.transmissioncenter.net/sp...n_______va.htm
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Old Apr 17, 2012 | 01:05 AM
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http://www.corvetteforum.net/c4/vett...Gearshtm.shtml
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Old Apr 17, 2012 | 03:16 AM
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Originally Posted by tjkman
I put a zf6 speed in my 85
Anyone know what gear to put in
Speedo gears required depend what diff ratio you have in the 85
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Old Apr 17, 2012 | 03:18 AM
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Originally Posted by tjkman
I put a zf6 speed in my 85
Anyone know what gear to put in
Speedo gears required depend what diff ratio you have in the 85

And as a note ;
if you don't change the rear ratio to similar to that used with the ZF6 (>3.45 )
then you won't be able to use 6th gear in the trans anyway with '85 3.07's or higher
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