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Old 08-07-2003, 01:24 AM   #1
'89Z71
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Join Date: Jan 2003
Location: Star Prairie WI
Posts: 392
gear ratio questions

I have an '89 GMC Sierra Z71 with the stock 10 bolt and was wondering what size gears it has in it? I found this link on the board gear ratio chart and according to what it says: sinse my truck runs about 2600(give or take a bit)rpm@65mph with 33" tires in 4th gear I should have anywhere from 3.91 gears to 4.11's. Is this correct???? From what others are saying i should have gears like 3.08's or something small like that in my truck. Any help is wanted (IM VERY CONFUSED:p ) Thanx in advance, DK
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