1957 GMC 1 ton Dually

Discussion in '1955-1959' started by tech1, Jan 12, 2006.

  1. tech1

    tech1 Member

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    As tech here at Chevy Duty I should know where to get this but this truck has a PTO hydralic flat bed on it, I don't know where to get the seals, does anyone have an idea on where to get those seals and also brake parts, shoes really, thanks I know you guys will help.


    Jesse Hazell Chevy Duty Tech.
     
  2. tech1

    tech1 Member

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    hello? anyone?
     
  3. Bill Hanlon

    Bill Hanlon Member

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    Can't help you with the seals, but I just keyed brake job info for '57 GMC 250 into NAPAonline and got back all kinds of good stuff.

    Try this URL
    http://www.napaonline.com/masterpages/NOLMaster.aspx?PageId=430&CatId=48&JobTypeCategory=Brake+Job+-+Complete

    It returned 23 different NAPA parts including brake shoes, wheel bearings, master cylinders, etc.
     
  4. tech1

    tech1 Member

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    thanks, I did find some parts i needed, do you guys think that I can probly get the PTO seals somewhere like tractor supply inc.?

    Jesse Hazell Chevy Duty Tech.
     
  5. Bill Hanlon

    Bill Hanlon Member

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    Pull the seals, measure the OD of the shaft and the ID of the hole the seal mounts in and head to a real bearing supply house.
     
  6. tech1

    tech1 Member

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    ok, thanks for all your help.
     
  7. Bill Hanlon

    Bill Hanlon Member

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    Jesse: I don't know if GM part numbers will do you any good, but I just found that my GMC Master Parts Book has a parts breakdown for "Power Take-Off Gear Box". You didn't say which seals you needed, so here are all the numbers for any seal on any GMC model 3xx or lower.

    Part # Description
    2278189 Seal - Oil, Power Take Off Bearing Cap
    Models 300-F450 # 1625 Input and output bearing

    3659559 Seal - Oil, Power Take Off Shift Rod
    Models 300-F450 Shifter Shaft

    I don't know what that #1625 is, but it may be some seal maker's standard number.
     
  8. tech1

    tech1 Member

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    thank you for all you time, you've been a big help.

    Jesse Hazell Chevy Duty Tech.
     
  9. b100-57

    b100-57 Member

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    try a hydraulic repair shop or bearing supply co. they handle all kinds of bearings, drives,and seals along with tons of other stuf.
     
  10. azcarman411

    azcarman411 Member

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    If your one ton is like mine you have 12" drums up front and 14" in the back. The fronts are no problem but the rears you may have to have them relined. The PTO I have on my truck is a Dana. Chris
     

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