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03-29-2011, 03:37 PM
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#1 |
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Registered User
Join Date: Jun 2006
Location: Saint Amant,Louisiana
Posts: 65
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Rear gear options for '71 2wd jimmy/blazer
Does anyone know what gear ratios came with '71 2wd blazer/jimmy?? Mine came with a 350/automatic tranny...does not have positive traction...I'm thinking probably 308 or 342...not real sure??? I am ordering a 700R4 conversion and they need to know for speedo gearing I guess...Thanks...KD
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03-29-2011, 03:48 PM
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#2 |
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Rollin in my K5 toaster
Join Date: Oct 2010
Location: Pacific Northwest
Posts: 254
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Re: Rear gear options for '71 2wd jimmy/blazer
Pop the dif cover and count the teeth. I'm sure it's time to change the lube anyway
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03-29-2011, 04:55 PM
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#3 |
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Registered User
Join Date: Aug 2007
Location: peoria az
Posts: 252
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Re: Rear gear options for '71 2wd jimmy/blazer
my rear came with 373s and my jimmy 2wd came with 373s.. i thinks this is a common in blazers.
__________________
1972 gmc jimmy project comin soon ( jus a sin ) 1959 chevy apache shortbed fleetside (brsgrm)  1966 Chevy c30 duallie 2wd (big chief) 
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03-29-2011, 07:12 PM
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#4 |
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Registered User
Join Date: Mar 2008
Location: Concord NC
Posts: 511
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Re: Rear gear options for '71 2wd jimmy/blazer
Mine is 350/auto 4x4 and has those @#$%#$@ 3.08 gears. I am looking for at least 3.73's to swap out.
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03-30-2011, 05:46 AM
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#5 |
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Registered User
Join Date: Dec 1999
Location: Old Mission, MI, USA
Posts: 2,507
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Re: Rear gear options for '71 2wd jimmy/blazer
With the 350 engine, 3.07/3.08 was the stock ratio.
__________________
Tim |
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03-30-2011, 11:01 AM
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#6 |
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Registered User
Join Date: Jun 2006
Location: Saint Amant,Louisiana
Posts: 65
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Re: Rear gear options for '71 2wd jimmy/blazer
thanks for the help fellas...KD
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03-31-2011, 10:55 PM
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#7 |
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Registered User
Join Date: Jun 2006
Location: Saint Amant,Louisiana
Posts: 65
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Re: Rear gear options for '71 2wd jimmy/blazer
pulled the cover today...14 teeth and 43 teeth...3.0714 ratio...new gear oil and gasket now...thanks all...kd
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