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11-30-2008, 01:16 PM
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#1 |
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Registered User
Join Date: Jul 2008
Location: Pennsville, New jersey (southern)
Posts: 143
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Gear ratio question
1984 K20. 350/th-400. 4x4
it says on the option list "standard gear ratio" just to be sure is it 3.21's ??
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Mine- '91 GMC RCSB 2wd, 350tbi, 5 speed, 3.42 G80 -Dad/Me Projects/Toys 75 SWB Silverado Factory 454, Th400 87 SWB Silverado 305tbi, 700r4, 2.73's...17.4 @74mph a couple dodge cummins trucks. PLEASE DO NOT MESSAGE ME ABOUT FACTORY TACH DASHES, I AM NOT MY FATHER AND I KNOW VERY LITTLE ABOUT THEM. Thanks 
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11-30-2008, 04:29 PM
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#2 |
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Registered User
Join Date: Mar 2005
Location: North Coast
Posts: 1,012
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Re: Gear ratio question
If it's a standard 3/4 ton likely gear would be 3.42, and if it's a heavy duty with 8600 gvw it would be 4.10 ratio.
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