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48 4bt Flatty

Discussion in 'Builds and Fabricators Forum' started by bnorth10, May 15, 2016.

  1. May 15, 2016
    bnorth10

    bnorth10 Wicked Willys Customs

    Joined:
    Feb 27, 2007
    Messages:
    128
    We've spent about 2 years building a flatfender 4BT... Why two years? Cuz 4 kids and life that's why lol and other Jeep builds in between..
    Why a Cummins 4BT?
    Because of a few reasons but the number one reason is that as a hobby in Nebraska we run the Platte and Loup Rivers in the summer time and literally take them to the deepest water we can find..we have done this since I was a kid in the 80s and most people use a gas engine and we are limited with our ignition system as to how much they will take..
    We load up coolers tunes and bikinis and cruise slow through the river seeing how far we can push the limits.. There are up to 300 jeeps a couple weekends out of the year..

    So like everyone you want something different that will out perform everyone else so my theory is even though I've ran the river many years successfully I wanted to build something that no one else had and maintain as light of a rig as possible.. Obviously the 4bt is not light but way lighter than a 6 cylinder.

    Specs:
    4bt Chevy 4 speed 205 t case 60 rear Detroit 4.56s front 44 (soon to be 60) Detroit 4.56s YJ frame 48 flatty body stretched 4.5" original front clip 39x13.59x17 irok radials on 17x10 beadlocks rear mounted fuel tank hand made tube fenders and rear tube flares..

    It's getting close to being done but have to finish:
    Spring over with 2.5" BDS Chevy Front leaves YJ BDS 2.5" rears corbeau suspension seats bed line inside Autometer gauges wiring and some changes to the cage

    Here are some pics of the project

    Pic of drivetrain

    Early stage after drivetrain installed

    Rear steel tube flares being created and previous owners hack job on the tub being corrected

    I would post a bunch more pics off my phone but it's not letting me as the images average about 3.75 MB
     

    Attached Files:

  2. May 15, 2016
    oddfirejeeper

    oddfirejeeper Active Member

    Hamilton, MI
    Joined:
    May 5, 2004
    Messages:
    1,253
    looks like the hack job in the rear was so you can get full tuck with those huge tires. now it looks like your tube fenders are going to be the limiters. looks nice though.. i really wanted to do a 4bt but didn't
     
  3. May 15, 2016
    ITLKSEZ

    ITLKSEZ Hope for the best, prepare for the worst

    Post Falls, ID
    Joined:
    Aug 13, 2015
    Messages:
    6,332
    :watch::watch:

    Sweet. Looking forward to more pics!

    Your rear driveshaft must be about 10"!
     
  4. May 15, 2016
    Focker

    Focker That's a terrible idea...What time? Staff Member 2021 Sponsor 2020 Sponsor

    Tri-Cities WA
    Joined:
    Aug 18, 2014
    Messages:
    7,480
    That shifter cane is something else! :shock:
     
  5. May 15, 2016
    bnorth10

    bnorth10 Wicked Willys Customs

    Joined:
    Feb 27, 2007
    Messages:
    128
    I can still get full tuck with the way we are building the flares..I just don't care for a cut off back look and can make my suspension tuck after I get my spring over done
     
  6. May 15, 2016
    bnorth10

    bnorth10 Wicked Willys Customs

    Joined:
    Feb 27, 2007
    Messages:
    128
    Ya the driveshaft isn't super long but with the spring over done it won't be as bad as a person would think
     
  7. May 15, 2016
    bnorth10

    bnorth10 Wicked Willys Customs

    Joined:
    Feb 27, 2007
    Messages:
    128
    Lol ya since it was a diesel had to throw a little truck spin on it :)
     
  8. May 20, 2016
    bnorth10

    bnorth10 Wicked Willys Customs

    Joined:
    Feb 27, 2007
    Messages:
    128
    Sheet metal almost all done
     

    Attached Files:

  9. May 20, 2016
    47v6

    47v6 junk wrecker! 2022 Sponsor 2021 Sponsor 2020 Sponsor

    USA
    Joined:
    Oct 25, 2006
    Messages:
    5,433
    I like that fender. You make it?
     
  10. May 22, 2016
    bnorth10

    bnorth10 Wicked Willys Customs

    Joined:
    Feb 27, 2007
    Messages:
    128
    Ya I designed it and a friend of mine made it
     
  11. May 26, 2016
    bcurtman

    bcurtman Member

    Rosebud, MO
    Joined:
    Jan 8, 2014
    Messages:
    283
    I started out planning a 4bt in mine, and not a day goes by that I dont regret not doing it. My engine rebuild cost me as much as a takeout 4bt with a t-18 behind it already. Divorced transfer case and I was done..... live and learn. Next one is 4bt for sure. I'm watching for a flat fender.
     
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