Proud Owner of a 378

Discussion in 'Peterbilt Forum' started by Charmeiser, May 3, 2025.

  1. Charmeiser

    Charmeiser Bobtail Member

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    Apr 29, 2023
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    Proud owner of an '88 378 Peterbilt with a Cummins 588. Currently no transmission, no driveshaft, and needing an inframe to solve the oil pressure dropping. Frames getting sandblasted too, and needs virgin rubber and four new rims.
     

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  3. Oxbow

    Oxbow Road Train Member

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    Idaho
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    Other than that she’s cherry!
     
  4. Bean Jr.

    Bean Jr. Road Train Member

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    I know what I'd do with that truck! Slap a stainless reefer bed and make an rv out of it.
     
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  5. 201

    201 Road Train Member

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    Apr 16, 2014
    high plains colorado
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    BINGO! I was going to do that with my '85 359 daycab, but ran out of steam. I've seen some mount a pull camper on the back, be an easy job. As far as power, if you go the RV route, there's no need for a big diesel, a Dodge RAM or even an LS motor would be more friendly. They were good trucks.
     
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  6. Bean Jr.

    Bean Jr. Road Train Member

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    I'd stick with a 12.7 Detroit. Bobtailing, my mileage rivals dually pickups.
     
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  7. Arctic_fox

    Arctic_fox Experienced mx13 execrator

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    I want your dually. My ram gets 7 lol.....i blame the fact with all the crap on it it weighs 9876 pounds sitting.

    That said thats a pretty old gal. She will make a good base for many projects.
     
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  8. Bean Jr.

    Bean Jr. Road Train Member

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    No, I don't have a dually. I meant my truck gets better mileage bobtailing than most duallies get
     
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  9. Arctic_fox

    Arctic_fox Experienced mx13 execrator

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    Oh i know, i was being a ######## lol.
     
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  10. ElmerFudpucker

    ElmerFudpucker Road Train Member

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    I got a 22 gasser 3500 that gets 9 pulling my 50g excavator. It’ll get 15 with no trailer.
     
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  11. RockinChair

    RockinChair Road Train Member

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    Feb 19, 2012
    CC, TX
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    Cool project truck! Where ya gonna go with it?
     
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