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HELP: Welding on Rear Diff Shield

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Snyperx, Apr 24, 2009.

  1. Apr 24, 2009 at 12:58 PM
    #1
    Snyperx

    Snyperx [OP] Seniore Marcos

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    I picked up a AllPro rear diff. shield for my 2005 Taco and am looking to get it welded up to my diff. I was kind of hoping to do this myself, but am not sure if my little 100amp MIG welder will get it done. If not, I know someone that might be able to let me use there larger MIG welder. Can someone with welder knowledge chime in? Any help is appreciated. Thanks.
     
  2. Apr 24, 2009 at 1:02 PM
    #2
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    I think your gonna need a little more power. I tried something similar, and couldnt get the axel to take a bead.
     
  3. Apr 24, 2009 at 1:11 PM
    #3
    Snyperx

    Snyperx [OP] Seniore Marcos

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    I was afraid of that. Do you know what amp setting you ended up needing? Also, how clean was the metal service prior to trying to lay the bead down?
     
  4. Apr 24, 2009 at 1:16 PM
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    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    I was at 115 amps. Surface was fresh metal, and had a good ground. I tried about 4 times before I gave up.
     
  5. Apr 24, 2009 at 1:20 PM
    #5
    Snyperx

    Snyperx [OP] Seniore Marcos

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    Do you know if you were doing full MIG with shielding gas or flux core? I know flux core can do a bit thicker metal than full MIG with shielding gas.
     
  6. Apr 24, 2009 at 2:41 PM
    #6
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    Ive never used the flux core. I was useing gas.
     
  7. Apr 24, 2009 at 2:56 PM
    #7
    TacoNut

    TacoNut IgnoringChrisWatchingEdLi veVicariouslyThroughMJP2

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    I don't think that 100 amp will do it...
    None the less still try and if it doesn't take, then It's all prepped so that once you take it to someone they just have to tack it up. Might save you some $$ for them not having to prep it
     
  8. Apr 25, 2009 at 6:41 PM
    #8
    Snyperx

    Snyperx [OP] Seniore Marcos

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    Appreciate the responses. Anyone else wanna chime in?
     
  9. Apr 25, 2009 at 8:07 PM
    #9
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    That dude on TTORA said it might work "if you do it right" whatever that means.....
     
  10. Apr 25, 2009 at 8:21 PM
    #10
    Snyperx

    Snyperx [OP] Seniore Marcos

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    Yeah, nice flipping answer:rolleyes: That's why I wanted to here from more "experienced" folks. I am now looking at trying to sell my little 100amp MIG machine to get some cash for a Hobart Handler 140. That should give me enough power for any future projects:D
     
  11. Apr 25, 2009 at 8:24 PM
    #11
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    You can give it a shot with your welder. Worst that can happen is you have to grind off the mistakes. Im still not sure why I couldnt get a bead with mine. It was like the steel was repelling the bead. REALLY strange.
    Hobart is a nice unit!!! Whats the duty cycle on it?
     
  12. Apr 25, 2009 at 9:21 PM
    #12
    Snyperx

    Snyperx [OP] Seniore Marcos

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    Duty cycle on the 140 is:

    Rated Output at 20% Duty Cycle 90 A at 19 VDC 63 A at 21 VDC (CSA Rating)


    I am actually going to maybe give my buddy a call and see if I can come by and use his larger unit. He has a Century welder that is fully MIG ready running shielding gas.
     
  13. Apr 25, 2009 at 9:35 PM
    #13
    jfr02

    jfr02 Well-Known Member

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    you could try to preheat you diff with a torch but don't go crazy with the torch try to keep the heat where you need it
     
  14. Apr 25, 2009 at 9:42 PM
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    dually

    dually Low and slow

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    Not as many as the 98..
    Try it.. 25v and crank up the WFS to about 200-220 ipm
     
  15. Apr 25, 2009 at 9:58 PM
    #15
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    I tried that....Didnt work. I didnt think it would being as I was useing an electric welder, but my buddy said the same thing, SO, I guess it may work some times....
     
  16. Apr 25, 2009 at 9:58 PM
    #16
    Snyperx

    Snyperx [OP] Seniore Marcos

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    Try it with my little 100 amp unit??
     
  17. Apr 25, 2009 at 10:00 PM
    #17
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    I would give it a shot. Set the amps high, and play around with the speed. I tried and failed, but maybe you will have better luck. Im curious as to why I couldnt get a bead, and Im hoping you can do it. That way, I know it was the welder and not me. :eek:
     
  18. Apr 25, 2009 at 10:24 PM
    #18
    Marc M

    Marc M Dirty White Boy

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    The diff with the gear oil in it is acting as a huge heat sink. So it's acting as if you are attempting to weld sheetmetal to an inch thick piece of steel.

    The diff won't get hot enough before you burn through the skid plate. The diff would need to be at the same heat level as the skid, so pre-heating is the key, unless you drain the diff first.

    Don't know how thick the skid is but if you're talking 3/8 to 1/4 inch, you'll need to go with a welder with atleast 140 amps or better.

    Just talking from my own experience though, so take it for what it's worth.

    Marc M
     
  19. Apr 25, 2009 at 10:29 PM
    #19
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    With what happened to me...Im thinking your right about the 140 amps...
     
  20. Apr 26, 2009 at 7:47 AM
    #20
    Snyperx

    Snyperx [OP] Seniore Marcos

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    Well the rear diff. shield is like 1/8" or 3/16" plate. So would draining the diff. be a good idea prior to welding? This is becoming more a PITA by the minute.
     
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