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Old May 8, 2005 | 08:32 PM
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speedometer is off

hey guys,

I'm a 20yr old college student and i have a 1979 f150 4x2 auto with a 351m.

I just put new gears in the rear end 3:50, i think the stock one were 2:70. I havent gotten to drive it yet, because i'm away at school, but my dad says the speedometer is off. how do i fix this?

and other thing does anyone have a B&M trankspak kit in a C6, i just had one put in, will i be impressed with it?

thanks
 
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Old May 8, 2005 | 09:06 PM
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The driven speedometer gear on the end of the speedo cable can be changed or a good speedometer shop can make up a gearbox to install in the cable.
 
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Old May 8, 2005 | 09:09 PM
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i just have to change the gear right?

can i get that part at napa? if i know many teeth the gear needs
 
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Old May 9, 2005 | 04:00 PM
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Its probably easier to get the right gear at a Ford dealer, they aren't very expensive.
 
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Old May 9, 2005 | 04:48 PM
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thanks a lot, is it easy to install?
 
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Old May 10, 2005 | 01:51 PM
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One bolt to pull the cable out of the housing and a clip to remove the gear.
 
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