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  1. #1
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    Difference between a SOHC 4wd engine and a 2wd engine??

    I've read that the SOHC engines made for 4wd models have a different crank (ballanced crank) or something like that where as the 2wd's dont. I heard the reason behind this was something to do with the transfer case, does anyone have any insight behind this?

    The reason im asking is that i bought a 01 SOHC engine and tranny hoping to swap it out next month sometime, but its from a 2wd. .. I didnt think it would matter.. so im kinda bummed out.

  2. #2
    Administrator Zoom's Avatar
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    I think all Ranger engines are the same. The only time I've seen a different SOHC even referenced was in the TSB for the timing chain rattle. It references it as a "non-balance shaft equipped engine", which makes it sound like there was one with balance shafts.

    The balance shaft is a secondary balancing shaft that is driving off the crank, not a balanced crank. It reduces the amount of vibration you feel from the engine.
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    2003 Ranger XLT, 4x2, 4.0 SOHC, Auto, 3.55's, Bright Red
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  3. #3
    Mr Mufakka RangerSVT2000's Avatar
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    The SOHC I swapped into my 2wd was from a 4wd Explorer. I think it has some sort of balancing shaft or something.

    Swapped in fine though.
    2000 regular cab, stepside: 4.0L SOHC, 5-speed, bagged, 20s, 13" brakes in the front, discs in the rear. Best 1/4: 14.8 @ 92
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  4. #4
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    Quote Posted by Zoom
    I think all Ranger engines are the same. The only time I've seen a different SOHC even referenced was in the TSB for the timing chain rattle. It references it as a "non-balance shaft equipped engine", which makes it sound like there was one with balance shafts.

    The balance shaft is a secondary balancing shaft that is driving off the crank, not a balanced crank. It reduces the amount of vibration you feel from the engine.

    so it sounds like more of a comfor thing, phew. thats a relief, i could care less if my truck shakes like crazy when the transfer case is engaged.. hell im offroad.. its bumpy as it is.

  5. #5
    Rad Racing Doug904's Avatar
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    There's a balance shaft in the oil pan on a 4wd model but not on the 2wd's. It will work just fine with or without it.

    Later Doug904.
    94 Ranger Splash, nice wheels, nice ride, I just love it!

  6. #6
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    That is assuming they put the right motor in to begin with.
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  7. #7
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    Quote Posted by 3lranger
    That is assuming they put the right motor in to begin with.
    there is a 2wd sticker on the drivers side valve cover.. so they at least put the right sticker on..

 

 

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