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4.0 radiator swap question


1984broncoduce

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hey guys I'm putting a 4.0 radiator into my 84 bII with a 2.8, i was wondering how do i get the transcoler lines to fit, they rant quite the right size, does anyone know what size they are?, any help is greatly appreciated. thanks y'all
 


mauer448

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Im interested in this too I got an 88 ranger that im fairly certain my radiators clogged its temperamental though
 

mauer448

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dug around on google and the forums and they've said that a 90-94 explorer 4.0 radiator should bolt up but you need the 4.0 lower rad hose
 

shane96ranger

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You could always just run an external cooler.
 

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Easiest way is to buy two pipe thread adapters of the correct size (don't ask me what it is.) That's what I did when I did the swap.

BTW, doing this in a 2.8 powered truck is fine, BUT if you have a 2.9 AND you care about fuel mileage at all, DO NOT SWAP A 4.0 RADIATOR. You gain a huge volume of coolant and your engine will always run really cool, thus your coolant temp sensor tells your ECM to use more fuel. Your mileage will take a huge dip into the crapper. In the winter your heater will take forever to warm up too.

^ Just from personal experience when I did the swap in my old Bronco II!
 

85_Ranger4x4

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Easiest way is to buy two pipe thread adapters of the correct size (don't ask me what it is.) That's what I did when I did the swap.

BTW, doing this in a 2.8 powered truck is fine, BUT if you have a 2.9 AND you care about fuel mileage at all, DO NOT SWAP A 4.0 RADIATOR. You gain a huge volume of coolant and your engine will always run really cool, thus your coolant temp sensor tells your ECM to use more fuel. Your mileage will take a huge dip into the crapper. In the winter your heater will take forever to warm up too.

^ Just from personal experience when I did the swap in my old Bronco II!
Unless it is Durasparked the same thing applies to a 2.8, they have a senser for the PCM in the thermostat housing as well.
 

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