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Speedo gear help?

gwstang

Member
Okay, the next issue with the 3.55 gears is the speedo is way off now. I have 205/60R/15 tires and 3.55 gears so what speedo gear color do I need to compensate? There was a chart for years but I can't find it now? Thanks, gary.
 
Hmmm....

I seem to recall you have an AOD and hence a 7 tooth drive gear. Your tires should be about 24.7 inches high, so 3.55 gears would use a 20 tooth driven gear by my calculations.

Good luck,
-Rory
 
Great minds must think alike. :craz If the tranny has a 7 tooth drive gear, then you'll need the 20 tooth. If the tranny has an 8 tooth drive gear, then you need some help, cause it calcs out to be 23 tooth.
 
Whatever you do, don't buy your gears in West Virginia: they only come with a single tooth!
 
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