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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

transmission question

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Old Jan 25, 2010 | 09:42 AM
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transmission question

can u change the shaft out of a disel transmission to make it work for a gas motor
 
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Old Jan 25, 2010 | 09:49 AM
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What kind of transmission?
 
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Old Jan 25, 2010 | 09:57 AM
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It is a 86 ford f250 had a 6.9L disel the moter was toast so it is gone i am wanting to put a 351 in it it has a 4 speed trans and it is a 4x4. not sure what the transmision make is i just know the shaft is to big to work without changing it or putting a whole nother trans in it.
 
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Old Jan 25, 2010 | 10:09 AM
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If you are talking four speed manual - all you have to do is change the bell housing. The shaft is the same.
 
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Old Jan 25, 2010 | 10:15 AM
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The 4 speeds should swap, but I'm pretty sure the gear ratios are different between diesel and gas units. That makes sense as the gas units rev higher than the diesels. You should find a taller gear set in the diesel unit. You'll need the bell housing and clutch setup from the 351 also.
 
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Old Jan 25, 2010 | 10:17 AM
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yea it is a 4 speed manual
 
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Old Jan 25, 2010 | 10:23 AM
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Have you entertained the idea of getting another diesel engine and installing it? If you get yuorself up to speed on how they work, I think you will like it.
 
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