1. Registration trouble? Please use the "Contact Us" link at the bottom right corner of the page and your issue will be resolved.
    Dismiss Notice

Seabee M38A1 Build

Discussion in 'Builds and Fabricators Forum' started by tymbom, Mar 30, 2014.

  1. May 30, 2022
    jeep peep69

    jeep peep69 Member 2021 Sponsor

    redding ca.
    Joined:
    Dec 8, 2007
    Messages:
    471
    If you have a drill press and patience drill the bolts for safety wire or get bolts predrilled a lot more reliable than welds
     
    Fireball likes this.
  2. May 31, 2022
    Norcal69

    Norcal69 Out of the box thinker 2022 Sponsor 2021 Sponsor 2020 Sponsor

    Northern California
    Joined:
    Sep 6, 2014
    Messages:
    2,783
    What ratio and spline are you running?
     
  3. May 31, 2022
    tymbom

    tymbom Member

    Siskiyou Co.
    Joined:
    Jun 13, 2012
    Messages:
    752
    Didn't even think of that... I'll have to look into that...
     
  4. May 31, 2022
    tymbom

    tymbom Member

    Siskiyou Co.
    Joined:
    Jun 13, 2012
    Messages:
    752
    I'm running 31 spline axles and 4.56 gears. I think the gear ratio is perfect for my tire size and lack of overdrive. It cruises along at 60mph with a quiet exhaust note at about 2500rpms...
     
  5. May 31, 2022
    Norcal69

    Norcal69 Out of the box thinker 2022 Sponsor 2021 Sponsor 2020 Sponsor

    Northern California
    Joined:
    Sep 6, 2014
    Messages:
    2,783
    I was going to offer a loaner 3rd member setup with spool but the lowest ratio I have setup is 5.0 :(
    If your locker is destroyed I think I have a couple 9" detroit lockers at the old shop. I can make you a good deal on one if you need it.
     
    tymbom likes this.
  6. May 31, 2022
    tymbom

    tymbom Member

    Siskiyou Co.
    Joined:
    Jun 13, 2012
    Messages:
    752
    Thanks for the offer!! I'll dig into it as soon as the parts arrive. I looked at it today and most of the holes are still good so I'm hopeful
     
  7. Jun 1, 2022
    tymbom

    tymbom Member

    Siskiyou Co.
    Joined:
    Jun 13, 2012
    Messages:
    752
    [​IMG]
    Doing stuff while I'm waiting for diff parts to arrive... Last summer when I first had the jeep driving I thought it was running too hot. Turns out the brand new guage was reading 20 degrees too hot. I cut out the inner fenders to try and get as much airflow as possible. Unfortunately that didn't make a difference and I somehow threw away one side. So I have an extra set of fenders that I'm going to modify in the same manner as the ones I cut up. Kinda frustrating doing work that was already done again... :mad: Oh well.

    [​IMG]
    Make sure you hand select the finest, straightest, most extra virgin fenders...

    [​IMG]
    The drivers side isn't much better. The black soot is from welding captured nuts on the inside of the fender. These fenders didn't have any or they were ripped off over the years... I also remade the upper radiator clamp thingy, but the new fenders are just different enough that things are moved around a little so I'll have to redo that again. I think this was the 3rd one so... :crazy:
    Hopefully I can make some more forward progress tomorrow
     
  8. Jun 3, 2022
    tymbom

    tymbom Member

    Siskiyou Co.
    Joined:
    Jun 13, 2012
    Messages:
    752
    [​IMG]
    Started whittling away at the driver's side fender... I left more flat fender this time so I have a spot for tools and parts to fall off of.

    [​IMG]
    I saved the side panels from the original fenders to reuse. Hopefully more tomorrow
     
  9. Jun 6, 2022
    tymbom

    tymbom Member

    Siskiyou Co.
    Joined:
    Jun 13, 2012
    Messages:
    752
    [​IMG]
    The passenger side fender is mostly did from the outside... I still need to take it off and weld some stuff from the inside. Looks just like it did before eh?

    [​IMG]
    I did find a bit a Bondo on the topside... Three layers! Bubba should be proud.

    [​IMG]
    I guess these are perfect for being chopped up...
     
  10. Jun 17, 2022
    tymbom

    tymbom Member

    Siskiyou Co.
    Joined:
    Jun 13, 2012
    Messages:
    752
    [​IMG]
    The fenders are did. The drivers side was a huge pain in the rear.

    [​IMG]
    It took all these tools to get stuff mostly lined up...
    The drivers side fender appears to be a half inch longer than the passenger side. Now the grill is twisted. I think it's gonna take some cutting and welding to get things lined up again.

    [​IMG]
    The diff is back together. It went right back together without any troubles.

    [​IMG]
    The locker needed some attention from a flap disc to clean it up a little, then I cleaned up each hole with the drill press. It went together smoothly after that.

    [​IMG]
    The case was scored from the ring gear bolts backing out.
    Now I have only a few things to get done before the Rubicon trip
     
  11. Jun 28, 2022 at 8:52 PM
    tymbom

    tymbom Member

    Siskiyou Co.
    Joined:
    Jun 13, 2012
    Messages:
    752
    [​IMG]

    Let's see how well this works... This entire time I've been using my phone to share these posts and pics. I finally decided to use the family laptop so hopefully this is a little better for picture heavy posts. I'll be making a post in the Trip Reports about our latest adventure.
     
  12. Jun 30, 2022 at 1:11 AM
    tymbom

    tymbom Member

    Siskiyou Co.
    Joined:
    Jun 13, 2012
    Messages:
    752
    [​IMG]

    Uggggh. Well that was fun. Today was my day off so I brought my wife lunch while she was at work. Since it was a beautiful cool day, only 95 degrees, my daughter and I drove the Jeep. On the way home I started noticing a vibration. Let off the gas and it went away. I thought aww darn here we go, another problem with the diff. Got home and backed it into the shop. Took the rear tires off and started looking. First thing I checked was the drive line. The first u-joint on the double joint was toast. No big deal just run back into town and grab another one. And a couple for spares for the front shaft. These little buggers are a pain since the cup and ball is spring loaded. I figured out that if you put the cross in on the cup and add one cap at a time it went easy. I used a 6 inch C clamp to push the cap in. Then that cap kept everything in line for the second cap. And while I was at it I greased up the other u-joints.

    [​IMG]

    I did notice a squeak when we were driving on the coast...

    [​IMG]

    In other news, I now have bumpstops on the rear axle. The rear tires would just barely kiss the fender on full articulation before, but with the Rubicon trip coming up, I decided that I needed to have bumpstops. Wheeling loaded for camping is a little different than just playing around for the day. I don't like the way it lands on the u-bolt, so I might build a pad that goes over the u-bolt.

    [​IMG]

    In the convenient ditch, it doesn't fully compress, but it's close. I can tune the bumpstops by trimming them to allow the tire to move further up, but I need to go find something bigger to flex on... Toby likes it though...
     
    txtoller, 47v6 and Fireball like this.
New Posts