Page 1 of 2 12 LastLast
Results 1 to 10 of 11

Thread: Willys MB Brake Drums

  1. #1
    Junior Member
    Join Date
    Oct 2020
    Posts
    12

    Willys MB Brake Drums

    Hi everybody.
    Despite extensive research, I have never found an explanation for the following difference I have detected in two brake drums with the same number (245666) from a Willys MB.
    In one case, the base of the drum central shaft is more inside than in the other. As a consequence, when applied to the same axle, this 2 kind of drums stay with different gaps between the drum and the plate.
    Can anybody help me to clarify this?
    Thank You
    Nuno

  2. #2
    Super Moderator LarrBeard's Avatar
    Join Date
    Nov 2014
    Location
    Ft. Wayne, IN
    Posts
    1,790
    GMWillys, this looks like a question for the wisest of wizards.

  3. #3
    Super Moderator bmorgil's Avatar
    Join Date
    Dec 2018
    Location
    Northwestern Ohio
    Posts
    1,674
    Interesting the two castings numbers on the drums are from two different molds. One using raised identification and one using indented. It looks like the "raised" number casting is much newer. Also, the hubs pressed into the drums are different between the two. It looks like the dimensional difference is in the hub.

    As soon as gm drinks his coffee we will see what he thinks!

  4. #4
    Junior Member
    Join Date
    Oct 2020
    Posts
    12
    I look forward to the answers.
    I take the opportunity to add a few more photos with other numbers (beyond the 24566) in the drums that have the central shaft more inside and the outer round surface farther away. These are the least common drums, compared to those normally found in Willys MB.
    Last edited by NMelo; 11-03-2020 at 12:06 PM.

  5. #5
    Super Moderator gmwillys's Avatar
    Join Date
    Aug 2017
    Location
    Alabama
    Posts
    2,597
    If I get a chance today, I will go out and look at some new repop drums to see how they were cast.

    The drums are the same front and back, but the offset of the hubs make them look different. The rear hubs are offset more to compensate for the wider front axle.

    More to follow.

  6. #6
    Junior Member
    Join Date
    Oct 2020
    Posts
    12
    Great ��
    Thank You

  7. #7
    Junior Member
    Join Date
    Oct 2020
    Posts
    12
    Dear gmwillys,
    No more news about this?
    Thank You in advance.
    Regards,
    Nuno

  8. #8
    Super Moderator gmwillys's Avatar
    Join Date
    Aug 2017
    Location
    Alabama
    Posts
    2,597
    My apologies. I dropped the ball on this question for sure. I looked through my existing photos, and do not have any showing the drums in detail. I may be able to get some shots in the next day.

    Thank you for your patience.

  9. #9
    Super Moderator gmwillys's Avatar
    Join Date
    Aug 2017
    Location
    Alabama
    Posts
    2,597
    I finally had a moment before the sun went down last weekend to try and capture the brake drums from our wagon. Low and behold the drums are not offset like I thought they were on the wagon. I didn't find enough time to pull the 2A out to remove the wheels to see if they were offset. I'm darned near certain that the CJs are offset just like the MBs. The new brake drums that I have do not have the hubs installed, so no luck there either. The one spare hub I have for a CJ is not offset. Don't give up on us yet, we'll get the information as soon as I get a chance to dig for it.
    Last edited by gmwillys; 12-08-2020 at 10:13 AM.

  10. #10
    Junior Member
    Join Date
    Oct 2020
    Posts
    12
    Thank You so much.
    I am sure that we will find the answer.
    Merry Christmas and Happy New Year". 2021 will be better then 2020.
    All the best,
    Nuno

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •