Gas tranny swap into a diesel - Ford Powerstroke Diesel Forum
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post #1 of 10 Old 03-23-2010, 03:48 PM Thread Starter
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Gas tranny swap into a diesel

I have a 2003 Ford f250 4x4 that is bone stock with the 7.3 engine and a auto transmission.It has 454000km's most of them highway.The tranny seems a little worn,what I mean is it shifts a little sluggishly and a little more RPM's to get it up to the posted speed limit.I came across a deal for a transmission from a 2001 F250 Superduty 4x4 that has the 5.4 Triton engine with a whole lot less KM's.My question is would a 4r100 transmission from a gas engine work in a diesel powered engine?Would the bell housing bolt pattern be the same? Any help would be appreciated.
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post #2 of 10 Old 03-23-2010, 04:28 PM
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I have a 2003 Ford f250 4x4 that is bone stock with the 7.3 engine and a auto transmission.It has 454000km's most of them highway.The tranny seems a little worn,what I mean is it shifts a little sluggishly and a little more RPM's to get it up to the posted speed limit.I came across a deal for a transmission from a 2001 F250 Superduty 4x4 that has the 5.4 Triton engine with a whole lot less KM's.My question is would a 4r100 transmission from a gas engine work in a diesel powered engine?Would the bell housing bolt pattern be the same? Any help would be appreciated.
the bolt pattern will fit but diesel trans are pulse width modulated and require different solenoid and torque converter and different pump. Also there are some clutches that are totally different due to the tremendous torque diesels produce. I would say rebuild old one.
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post #3 of 10 Old 03-23-2010, 04:51 PM
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Won't work,. dowell pins are diffentt..
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post #4 of 10 Old 03-23-2010, 04:54 PM
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as said before, that gasser trans wont hold the torque. input shafts are a lot smaller and weaker

02 lb7
97 7.3
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post #5 of 10 Old 03-24-2010, 11:22 AM
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8599.fyi, the bolt partterns are different.
dsijnky, fyi, input shafts are the same. The diesel does have more clutches in it as you said.
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post #6 of 10 Old 03-24-2010, 03:14 PM
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8599.fyi, the bolt partterns are different.
dsijnky, fyi, input shafts are the same. The diesel does have more clutches in it as you said.
your right, today i saw a gasser and a diesel trans the pins are totally different. sorry my bad.
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post #7 of 10 Old 03-24-2010, 06:21 PM
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Put it in. Then when you take it out shortly snap some shots. I wanna see what torture a diesel will do to a gasser tranny

2005 F250 6.0 King Ranch Crew Cab Short Bed 4X4
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post #8 of 10 Old 06-23-2014, 08:55 PM
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How big of a fight would it be to put a 6 speed from a 7.3 into a 5.4 truck?
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post #9 of 10 Old 09-02-2015, 05:17 PM
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Wud a 96 gas manual tranny fit in a 2001 powerstroke for swap?
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post #10 of 10 Old 09-03-2015, 02:34 AM
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I don't know about the manual but the automatic will not. The dowel pins are a different size. Don't even attempt to drill them out to match, these are what keep the trans centerline matched to the crankshaft centerline to within .001. No room for error.
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