Sourcing shims for differential set up

Discussion in 'The Garage' started by COXR650L, Aug 7, 2018.

  1. COXR650L

    COXR650L Long timer

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    Although not moto, maybe someone can help me.

    I'm installing 4.9 gears and Arb lockers on my 2003 Mitsubishi Montero. Arb supplied a pack of thin set up shims for the carrier preload/backlash, but I really need a thicker shim. Mitsubishi makes a shim kit but it's back ordered and only available from Japan. I've called some local places and none are interested in helping or comparing the OD and ID of existing shims.

    So does anyone have an idea of where I can get steel shims that measure approximently 89mmx75mm and around 3mm thick?
    #1
  2. RetiredandRiding

    RetiredandRiding Retired to Ride

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    Did you ask the Mitsu dealer to do a nationwide part number search? There may be a dealer somewhere with one collecting dust on the shelf who'd be happy to UPS is to you.
    #2
  3. COXR650L

    COXR650L Long timer

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    Yeah, they said none state side:(

    I know monteros are not common, but not rare either. I gotta think differentials get set up from time to time in the US:dunno
    #3
  4. Schmokel

    Schmokel I got peed on today.

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    https://www.pirate4x4.com/forum/124-mitsubishi/

    Just, uh, careful over there. Expect comments from suck starting a shotgun and fornicating a blender. Lots of knowledge and lots of delinquents that makes the basement here seem like a daycare.
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  5. GreaseMonkey

    GreaseMonkey Preshrunk & Cottony

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    Have you tried summit racing? They have quite a few listings for shims so you could try calling their technical help department.
    #5
  6. VX Rider

    VX Rider Long timer

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    The part number MR179440

    Shows up on ebay and.other locations...
    I sent email to Savanah Mitsubishi who list the part as well....
    #6
  7. foxtrapper

    foxtrapper Long timer

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    You can buy shim stock from McMaster Carr and cut your own.
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  8. COXR650L

    COXR650L Long timer

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    .

    I'm not sure I'd have any means to cut the shim with any hope of it still being the correct demisions with out some machine tools.

    I looked online and they did not list any but they may be worth a call. Thanks!

    Not sure what that part number is for (pinion shims maybe), but the correct part number is MR508116
    #8
  9. foxtrapper

    foxtrapper Long timer

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  10. COXR650L

    COXR650L Long timer

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  11. foxtrapper

    foxtrapper Long timer

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    OK, but it's still showing as in stock and shipping tomorrow when I do the checkout.

    In any case, there are several others who will ship from Japan, showing it as in stock, to be here by the middle/end of the month. That said, I've had things come on time, and other things get hung up in customs for weeks.

    If it really is a simple shim (pictures are contradictory), I'm still saying you can cut your own. ~3mm is a bit thick for the likes of shear cutting, but two hole saws would cut out the shape. File to smooth. If adjustment is the issue, you can stack shims and do the cutting with shears on thinner stock.

    If it's a compression piece (which some of the pictures make it look like), that would be different and not a simple shimming.
    #11
  12. COXR650L

    COXR650L Long timer

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    I called them, definitely not in stock.

    I wanted to just get this thing done and was hoping someone would have some alternative ideas. But at this point I agree, ordering from Japan may be the only option.

    I was actually ready to hit the order button on an international parts website, but at $100 I'm a little nervous. Especially because the parts description is only a "shim" not shim kit. When I called mitsubishi parts warehouse about the part the main thing I wanted was clarification if it was a kit or really just one shim. They were not sure......

    Thanks for the help
    #12
  13. usgser

    usgser Long timer

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    Have you tried any of the dedicated axle shops? I would call Randy's Ring and Pinion in WA
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  14. COXR650L

    COXR650L Long timer

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    I've called local places.
    I did not think of Randy's. Thanks I'll give them a call
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  15. mouthfulloflake

    mouthfulloflake Not afraid

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    If you knew the size of the bearings you needed to shim, then you could just get the shims from a more common axle with similar sized bearings right?
    #15
  16. tbas3

    tbas3 Been here awhile

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    If they are not too weird of a shape you could buy peelable shim stock and make your own. Its thin wafers laminated with glue. you just peel them away layer by layer until they are the thickness you want. they can be cut with sharp scissors.
    #16
  17. dwayne

    dwayne Silly Adventurer

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    Or Yukon Gear?
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  18. VACommuter

    VACommuter Long timer

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    I’m here in japan. Don’t know dick about differential shims but let me know if I can help.
    #18
  19. COXR650L

    COXR650L Long timer

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    Thanks for the help.

    I was able to use a belt sander and made the OEM shims work in conjunction with the ARB set up shims. Would have been much easier with the correct shims, but I got it done.
    #19
  20. shovelstrokeed

    shovelstrokeed Long timer

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    Belt sander? Is this the shim set for a pinion gear? Bad idea, should be hardened steel and at minimum, surface ground.
    #20