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4.0 swap q's


BlackBII

BlackBII

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Have you done the swap already?

What all doesn't work?

I have a '90 BII. I found a '90 Ranger 4.0. I swapped in the 4.0, and it was 100% plug and play. I didn't splice a single wire. (Save for the power windows/doors. My BII has power windows, but the ranger didnt, so obviously I had to do some splicing there. :icon_twisted:)
 


RayRayBaby1990

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Well i went early this morning grabbed harness and ecu out of a 1990 ranger with a 4.0 just got done installing the harness.....everything is kicking on like it should.....i got lucky found one with auto....4x4 power windows and locks....so everything inside works.....now its just a waiting game for the motor to get back from the machine shop....should be the end of next week.....so im gonna be bored until then i guess.....course there are still a couple things i need to go grab from the yard that i forgot today....the throttle cable....cruise box.....small stuff like that. I gotta run some new tranny cooler lines cause i noticed mine were leaking.....i had her trans rebuilt 3 weeks age....already got the lift on.....rims and tires.....people around here wont know what to think when we pull up in this frankenstein hell wagon he he he.....thanks to you all for answering my questions....hopefully one day ill be able to return the favor
 
kunar

kunar

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RayRayBaby1990 said:
Well i went early this morning grabbed harness and ecu out of a 1990 ranger with a 4.0 just got done installing the harness.....everything is kicking on like it should.....i got lucky found one with auto....4x4 power windows and locks....so everything inside works.....now its just a waiting game for the motor to get back from the machine shop....should be the end of next week.....so im gonna be bored until then i guess.....course there are still a couple things i need to go grab from the yard that i forgot today....the throttle cable....cruise box.....small stuff like that. I gotta run some new tranny cooler lines cause i noticed mine were leaking.....i had her trans rebuilt 3 weeks age....already got the lift on.....rims and tires.....people around here wont know what to think when we pull up in this frankenstein hell wagon he he he.....thanks to you all for answering my questions....hopefully one day ill be able to return the favor
Click to expand...
good deal man, sounds like you got what you needed!
 

RayRayBaby1990

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I hate to bring this back to the top but I'm finally getting back around to this truck. Do I use the block/bellhousing spacer ?? and is using the 2.9 flexplate ok ??
 
country0001

country0001

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Flexplate is the same. You will need the 4.0 starter though
 
4.0B2

4.0B2

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Haha don't use a 2.9 starter on it! I learned that the hard way. It's to big and don't work. You'll love the 4.0 swap it's awesome
 
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