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01-01-2005, 02:52 AM
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#1 |
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Registered User
Join Date: Apr 2004
Location: Seward Ne.
Posts: 50
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Tranny ?
Here gos I have a 3 speed and a Granny 4 and 3.73 posi the question is what trans do i use for better Hiway miles looked at all the books i have and not one has final gear ratio. If some one knows the ratio or can send me to a web site it would help alot.
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01-01-2005, 03:24 AM
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#2 |
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Senior Member
Join Date: Sep 2004
Location: CANADA
Posts: 1,681
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the final drive ratios in both trannys is 1to1.the th350 and th400s have the same final drive ratios too.You could change to an overdrive tranny to get a lower final ratio.Or change the rear gear to a higher speed set to get better gas mileage.if you swap gears you will lose some bottom end power.
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01-01-2005, 03:26 AM
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#3 |
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Registered User
Join Date: Jun 2004
Location: Beeville, Texas
Posts: 1,943
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3rd gear in a 3 speed is 1:1 and 4th gear in a 4 spd is 1:1, so either one will work. It just depends on where you want to shift, on the column or on the floor. You could always put the 3 speed shifter on the floor too.
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RJD 1984 Chevrolet C30 welding truck 454/SM465 1977 GMC C15 pickup 350/TH350 1970 Chevrolet C20 pickup 350/TH400 1970 Chevrolet K20 Suburban 454/TH350 1969 GMC 8500 478M V6/5 spd winch truck |
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01-01-2005, 03:51 AM
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#4 |
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Got Light Emitting Diode?
Join Date: Apr 2004
Location: Newberg, OR
Posts: 2,485
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go with the 4 speed, they are funner (yes its a word)
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1968 1/2 ton 2wd lwb 6 lug disc and bags up front. Next c notch and rear bags '02 Chevy Silverado LT ext cab short bed 2WD 5/7 drop on 22's  (the family car)1993 Cherokee work ride/weekend wheeler |
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01-01-2005, 04:43 AM
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#5 |
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Registered User
Join Date: Apr 2004
Location: Seward Ne.
Posts: 50
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Brings up another question does any one have a 3 speed OD tranny like the ones that were in 57 chevys with the cable for the OD.
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