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Upgrade the Rear End Axle

Mustangcwo Apr 9, 2016

  1. Mustangcwo

    Mustangcwo Crew Chief Staff Member Global Moderator Board Member San Diego Chapter

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    I have decided that the new engine will put quite a bit more stress on my rear axle tubes. Therefore, it's time to gut the axle tube and get them welded. Here are a few pictures of the axle, still in the car, before stiffening and welding. Plan is to get the axle out this weekend and over to Bobby @orange395w for the modifications.

    IMG_0657.JPG IMG_0658.JPG IMG_0659.JPG IMG_0660.JPG
     
    wickedstangs likes this.
  2. Mustangcwo

    Mustangcwo Crew Chief Staff Member Global Moderator Board Member San Diego Chapter

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    I'll finish pulling the axle on Sunday at noon; should only take about an hour or two.
     
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  3. VP_07SRT8

    MOTM

    VP_07SRT8 Tell the cops nothing! Staff Member Moderator Donator Board Member San Diego Chapter

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    looks pretty clean. I will try to make my way over there, appraiser said i can pick up the paperwork around 1030. so dont see issue as of right meow
     
  4. wickedstangs

    wickedstangs Chula Vista, CA Staff Member Administrator San Diego Chapter

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  5. VP_07SRT8

    MOTM

    VP_07SRT8 Tell the cops nothing! Staff Member Moderator Donator Board Member San Diego Chapter

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    im going to head over to help for an hr or 2
     
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  6. Mustangcwo

    Mustangcwo Crew Chief Staff Member Global Moderator Board Member San Diego Chapter

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    Thanks to DSG for assisting in pulling and gutting the axle. VP, good to see you again and I'll get you dirty next time.

    Axle out and quad shock mounts trimmed away.

    IMG_0665.JPG IMG_0666.JPG
     
  7. wickedstangs

    wickedstangs Chula Vista, CA Staff Member Administrator San Diego Chapter

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    very cool keep them pics coming..
     
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  8. DSGimportslayer

    DSGimportslayer DSG in the hisouse! Donator San Diego Chapter

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    Dem sum fine pikchers ryte der mm hmmm.
     
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  9. VP_07SRT8

    MOTM

    VP_07SRT8 Tell the cops nothing! Staff Member Moderator Donator Board Member San Diego Chapter

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    Yeah hope to make it over sooner next time. Appreciate knowledge
     
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  10. Mustangcwo

    Mustangcwo Crew Chief Staff Member Global Moderator Board Member San Diego Chapter

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  11. VP_07SRT8

    MOTM

    VP_07SRT8 Tell the cops nothing! Staff Member Moderator Donator Board Member San Diego Chapter

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    should turn out pretty damn good! Hope this helps to mitigate the pulling
     
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  12. orange395w

    orange395w OG MEMBER Donator San Diego Chapter

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    Well I got started on Todd's Rear today. (No homo Emilio).

    I always like the moment of the truth when the alignment bar gets set up. This is the Passenger side, which normally takes the most brunt when launching at the track.

    [​IMG]

    Here is the Driver's side.

    [​IMG]

    I sent these pictures to Todd and he asked if he needed a new axle lol I've seen so many jacked up ones that I get more surprised when they aren't bent then when they look like this. I let him know that I would straighten it. Here is a pic of the tube after working a little magic.

    [​IMG]

    Once both sides were done I was able to slide the alignment bushings in with ease. When the tubes are bent these will not slide into the housing ends.

    [​IMG]

    [​IMG]

    Once I got everything cleaned up I welded the tubes, but I was not happy with them. I cleaned everything really good, but the welds were still boiling out junk from between the axle tube and the pumpkin.

    [​IMG]


    Unhappy with my welds, I took a trip down to "Bob Meyer Race Cars" to ask him what I was doing wrong. I will not tell you what he told me, but he said he had the same issue years ago when he was trying to figure this out haha. I got home and cleaned up the old welds and laid down some new ones.

    [​IMG]

    [​IMG]
     
  13. orange395w

    orange395w OG MEMBER Donator San Diego Chapter

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    More to come. I still have the bracing to weld on.............
     
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  14. wickedstangs

    wickedstangs Chula Vista, CA Staff Member Administrator San Diego Chapter

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    Very cool
     
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  15. Mustangcwo

    Mustangcwo Crew Chief Staff Member Global Moderator Board Member San Diego Chapter

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    Very nice welds. I cannot wait to put this car on the track and blow up the transmission!!! At least the axles will be safe and not dragging.
     
  16. VP_07SRT8

    MOTM

    VP_07SRT8 Tell the cops nothing! Staff Member Moderator Donator Board Member San Diego Chapter

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    coming along nicely!
     
  17. DSGimportslayer

    DSGimportslayer DSG in the hisouse! Donator San Diego Chapter

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    Is there a reason why you don't mig these?
     
  18. orange395w

    orange395w OG MEMBER Donator San Diego Chapter

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    Yes Sir. The reason is the tubes are mild steel and the center section is cast. If you were to mig them it might look pretty on the outside, but it won't hold for shit. The super missile tig rod is specifically used for dissimilar metals. I have actually run a test using mig on a scrap one. 9 times out of 10 the weld will crack before you lift your helmet.
     
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  19. DSGimportslayer

    DSGimportslayer DSG in the hisouse! Donator San Diego Chapter

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    My experience with cast is it requires preheat and post heat
     
  20. orange395w

    orange395w OG MEMBER Donator San Diego Chapter

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    You are correct. I preheat these to between 400-500 degrees. You don't necessarily need post heat, but you can't allow it to cool too fast. What I do is right after the weld is completed I wrap a welding blanket around the weld.

    I guess theoretically you could do the same using mig, but mig does not penetrate as well and does not work well with the dissimilar metals.
     

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