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Old 07-25-2012, 08:04 PM
tobyj17 tobyj17 is offline
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T-350 speedo gear question?

Ok, so to start off here's what I've got: an 83 Grand Prix with a TH350, 3.42 gears, and 235/60/15 tires. I'm curious what gears I'm supposed to put in the trans to get the speedometer close? I found several places on-line that list the gears..but I'm a little confused on the driven/speedo gear part.

Here's what I came up with: 17 for the trans gear, and 45 for the speedo gear. BUT, which ones are considered the drive/driven gear?
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