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1967 - 1972 F-100 & Larger F-Series Trucks Discuss the Bumpsides Ford Truck

what gear?

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Old Jul 11, 2003 | 01:51 PM
  #1  
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JasonB
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what gear?

i am putting a 289 in my 68 f100 step side...... it currently has a 240 IL6 in it..... i am thinking i will need to change the rear end gears.....right now i have a real short 1st great i can start off in second gear if i want to( i am keeping the 3 speed for now also)

what gear do yall think i should go with?

oh and i found the perches finally in Kanas City

Jason
 
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Old Jul 11, 2003 | 01:53 PM
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JasonB
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what gear?

oh and my rear end is a 9 inch 10 bolt .....thats what it looks like

jason
 
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Old Jul 11, 2003 | 04:39 PM
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what gear?

Can't see why you should change. I would think the 240 and 289 are comparable for torque.

With the 289, you should pick up some more revs. It may be a little weaker on the bottom, but I don't think it will show compared to the 240 inline.

get it all setup and see how it drives. A tach would be good for helping to diagnose whether or not a gear change is a good idea.

My 2 cents.
 
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Old Jul 12, 2003 | 01:15 AM
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what gear?

Yeah, I agree with gtex, but really hard to give you much of an answer without knowing what gears are currently in there.
 
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Old Jul 12, 2003 | 10:43 AM
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what gear?

i was told i was 4:11 in the rear end........ and i have another question i have the 240 IL6 in there now........ and the clutch petal has a bar it piviots on that uses the motor as kind of a brace. do they sell a kit or will i have to make it work some how or will the 289 do kind of the same thing?
 
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