Drivetrain swap from '99 to '04 Super Duty... possible?
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5th Wheeling
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Drivetrain swap from '99 to '04 Super Duty... possible?
I messed up the title...it's an '01, not a '99. Moving on...I purchased a 2001 Ford F350, 2WD with a good running 7.3 and a 2004 F350 4WD with a junk 6.0. The '01 is rusted to death and the '04 is pristine and I want to yank the cabs and do a power train swap. I have a good 4r100 and transfer case to put behind the 7.3L as I know the trans behind the 6.0 is not the same. I am aware that I may have to do electrical harness swaps since engines are different and there will be some weirdness with that transition. What I am looking for is any guidance on if I am going to have dash display issues or other items that don't translate between power trains? I don't know a lot about the key differences between the 2003 and 2004 chassis since they stopped putting the 7.3 in at the end of the 2003 run? Seems simple to me but before I have a pile of truck parts laying around, trying to educate myself an the adventure I might be embarking on.
Last edited by The Guru Of Nothing; May 23, 2026 at 08:49 PM. Reason: Added information
Lead Driver
Joined: May 2011
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So what is wrong with the 6.0? The 6.0 platform is superior to to the 7.3 (the 5r110 is really what i would want to keep) and it might be better for you to fix the 6.0 and part out the 7.3 or save it for another build.
4wd High
Joined: Dec 2024
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Anything is possible
It’s my understanding that you could have had either a 7.3 or a 6.0 in ‘03. That being said, I don’t think the instrument cluster would care what PCM it’s taking data from. I suspect you can disconnect the engine bay harness from the 7.3 and plug it directly into the 6.0 plugs. There may be a connector body that you have to swap over because it has a different shape, but I believe all of the wires would be the same. If it’s a problem you could just take everything from behind the dash as well if you had to.
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Jul 27, 2024 09:29 PM
