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4spd to 5spd

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Old Oct 6, 2012 | 01:07 AM
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Default 4spd to 5spd
I have a 83 f150 with a 4spd, with granny low and I was wondering if I put a 5 spd with granny low would I get better mileage or am I better off keeping my 4 spd?
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Old Oct 6, 2012 | 03:49 AM
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Yeah you'll get better mileage.
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Old Oct 7, 2012 | 02:47 AM
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Ok cool how much do you possible know or estimate ? 5 to 10?
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Old Oct 7, 2012 | 04:30 AM
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What are you getting now?
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Old Oct 7, 2012 | 07:32 PM
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I'm getting about 13 to 14 right now
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Old Oct 7, 2012 | 08:44 PM
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I can get 16 easy with my 5 speed. Overdrive makes a difference.
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Old Oct 7, 2012 | 09:04 PM
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Ok so if I were to do it I would only gain 2 mpg
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Old Oct 7, 2012 | 09:23 PM
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Just wondering what an eastameted mpg should be on mine. 87 f160 with 300 4spd with od. And first is geared high what trany it is code B my tag says.
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Old Oct 7, 2012 | 09:39 PM
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Originally Posted by fordka
Just wondering what an eastameted mpg should be on mine. 87 f160 with 300 4spd with od. And first is geared high what trany it is code B my tag says.
That was my setup. I only switched to the 5 speed because I went through four of those 4 speed overdrives.
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Old Oct 7, 2012 | 09:58 PM
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Do you remeber about what mpg you got with yours. I like mine not sure if its cause the bad cyl and low power but if i dont get to high enough rpm it shakes when i get to 3rd other than that i like it.
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