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

5speed conversion

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Old Apr 17, 2012 | 05:45 PM
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1983/84f350
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5speed conversion

have a 83 f350 with a 6.9 i am putting a 351w in it. I am pretty sure the old 4speed from the 6.9 will not work. I have a 5speed for a 351w from 89 truck both are 4wd trans. will this go in easy or do i need to "modify" for it to work ??
 
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Old Apr 17, 2012 | 06:11 PM
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Should be fairly easy. You will have to change your hydraulic clutch system around a little bit, I believe your diesel has a external slave cylinder while the 351w I think is internal type slave. Check this out, and get the correct lines and stuff, the clutch master should still work.
 
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Old Apr 17, 2012 | 06:22 PM
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Thanks for the info i will look into it
 
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Old Apr 17, 2012 | 07:00 PM
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The 351 will have an internal slave.

The big blocks, and diesel were the only ones to have an external slave in the hydraulic clutch years.
 
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