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Old 02-10-2002, 11:29 AM   #1
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Question about speedo drive and driven gear
Ok so I finally deside that I am going with 3.42's in my bird, my buddy GAVE me a good rear end....so I gotta use it.......ain't no gears like free gears....but anyway, Can anyone help me out with the tooth count that I will need to make my speedo right? Any help at all would help me out........BTW I have a 700R4 tranny, Thanks guys:hail:
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Best time was with 3.42.....14.23@96.8

Lookin for someone somewhat local to help me with a chip!!!! Can anyone help?

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Old 02-10-2002, 11:40 AM   #2
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http://www.tciauto.com/tech_info/speedo_gears.htm


You'll need your tire diameter and drive gear tooth count in order to use the link above. It's the most accurate way I have found to get the right gears.
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Old 02-10-2002, 02:44 PM   #3
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Ok I have no clue how many teeth are on the drive gear now.......but my tire dia...is 25.5
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Old 02-10-2002, 02:50 PM   #4
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Car: 1991 Camaro Z28
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15 and 41. A quick search of this board found me that. You should have a 17 now...
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Old 02-10-2002, 06:42 PM   #5
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so right now I have 17 and 41..............but with 3.42 I will just have to change the drive gear.....15... BTW right now I have 2.73's does this change anything?
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Old 02-10-2002, 07:05 PM   #6
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It's much easier to change a driven gear (one bolt), than a drive gear (have to remove tailshaft housing). Just a thought when picking out your gears.
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Old 02-10-2002, 07:05 PM
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