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Change out my 3.0 for a 4.0?


Ozark Ranger

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I have a 1999 3.0 Ranger 4x4 with a five speed.

I need to change the engine anyway so I would like to go to a 4.0.

Any reason why not to?

Anything extra hard about the change over?

Anything to watch for?

Would you recommend a rebuilt or a used engine.?

Most used ones seem to all have 70 or 80,000 miles & seems bogus.

Thanks guys!!
 


fastpakr

fastpakr

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For what it's worth, a 5.0 swap on your '99 4x4 isn't significantly harder than a 4.0, but dramatically more reliable than the SOHC (or more powerful than an OHV, if you were looking at that option).
 
BlackBII

BlackBII

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From the 4.0 donor truck you'll need
Engine
Transmission
Engine wiring harness
Engine computer
Airbox?
Radiator?
Y-pipe?
A/C Lines?

Everything will swap over, but you'll need more than just the engine so finding a complete donor truck might be easier than sourcing parts from a junkyard or ebay.
 
Craig0320

Craig0320

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Break it right the first time. Fix it better the next time.
adsm08

adsm08

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31X10.50X15
4.0 is a nice engine, but usually going to a bigger engine is for more power, which make what everyone said about the 5.0 right. For all the work involved in putting in a 4.0 you might as well go 5.0.
 
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