3.0 swap to 4.0 (how hard?) - Ranger-Forums - The Ultimate Ford Ranger Resource


2.9L & 3.0L V6 Tech General discussion of 2.9L and 3.0L V6 Ford Ranger engines.

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  #1  
Old 03-11-2008
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3.0 swap to 4.0 (how hard?)

i was wandering how hard it would be to swap my 3.0 with a 4.0 and what modification i would need to do if any to make it work? thanx
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Old 03-11-2008
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if u are going to do a swap go for the 5.0
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Old 03-11-2008
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Quote:
Originally Posted by FiNkEy View Post
i was wandering how hard it would be to swap my 3.0 with a 4.0 and what modification i would need to do if any to make it work? thanx
Engine, transmission, PCM, engine wiring harness and exhaust Y-pipe are all different. Those are the major parts. Be sure to shop for a compatible year donor - a 2003 4.0L would be the best donor for your 2003 3.0L. 2001~2002 would also work without much trouble.

2003 3.0L came with either a 7.5" or 8.8" rear axle, depending on the model. The stronger 8.8 is the factory unit for 4.0's and would be a better choice for your swap, too.
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Old 03-11-2008
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Originally Posted by rwenzing View Post
Engine, transmission, PCM, engine wiring harness and exhaust Y-pipe are all different. Those are the major parts. Be sure to shop for a compatible year donor - a 2003 4.0L would be the best donor for your 2003 3.0L. 2001~2002 would also work without much trouble.

2003 3.0L came with either a 7.5" or 8.8" rear axle, depending on the model. The stronger 8.8 is the factory unit for 4.0's and would be a better choice for your swap, too.

thanx thats pretty helpful i new it wasent anything to crazy i just wanted to be sure what the main things are before i started looking for a motor. does the 4.0 motor mount to the same motor mouts as the 3.0?
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Old 03-11-2008
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Should be 100% bolt in and plug & play if you get the right donor. Sounds like fun.
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Old 03-11-2008
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if you get a donor truck you should be able to just unbolt everything and bolt it all back in.
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Old 12-27-2008
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What about tranny, can you use the same tranny from the 3.0 and swap a 4.0 in?
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Old 12-27-2008
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old thread... but ok.

AFAIK any ranger thats auto above 2002 is a 5r55w.
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Old 12-27-2008
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Originally Posted by Robin Hood View Post
old thread... but ok.

AFAIK any ranger thats auto above 2002 is a 5r55w.
Yeah but the engines have different bolt patterns so he would have to get a 4.0 tranny.
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Old 12-27-2008
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ok thanks for correcting me, i wasn't really sure, i just knew the trans themselves were the "same".

i learned stuff today. :)
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  #11  
Old 12-27-2008
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This was something I have thought about in the past as well, if you do it be sure to post up some progress.
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Old 12-27-2008
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The trans are different between the 3.0 and 4.0. This is something I would consider if my engine blew.
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Old 12-27-2008
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if mine goes. Im putting in a 5.0 from an explorer!
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Old 12-27-2008
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3.0 trans is 5r44e, 4.0 is 5r55e
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  #15  
Old 12-28-2008
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Bolt patterns from the bellhousings are different between the 2 engines. The job is 100% ' plug n play ' or a direct swap. Grab the engine/tranny/gizmos from the 4.0 truck and bolt it all in.
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Old 01-12-2009
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Does anyone know what happens come smog time when you bump up to a diff engine in California based on experience? =)
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Old 01-12-2009
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By plug and play are you meaning the connections that are on the driverside, below the brake master cylinder? and are all the connections pretty much located in the engine bay?
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