Truck Transmission PTO Units

Discussion in 'Jeep Utility Tech' started by ITLKSEZ, Dec 2, 2017.

  1. Dec 2, 2017
    ITLKSEZ

    ITLKSEZ Volvophilic

    Post Falls, ID
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    While we're on the subject of PTO units that bolt to truck transmissions, does anyone know of a database or website with info on these? I have one with zero ID aside from a casting number. Its tag is missing. It has straight-cut gears, so I'm assuming it must match up to an old transmission.


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    Last edited: Dec 2, 2017
  2. Dec 2, 2017
    Daryl

    Daryl Sponsor Sponsor

    Bonney Lake, WA
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    I spent hours upon hours looking a couple years ago for info on them. I was never able to find anything on units more then a couple years old.
     
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  3. Dec 2, 2017
    fctex

    fctex Sponsor Sponsor

    san antonio texas
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    I took mine to a big truck center that sold dump and utility beds. They had catalogs on all different types of pto's. Most common brand i found were Chelsea and Muncie. They are considered 6 bolt.
     
    Last edited: Dec 2, 2017
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  4. Dec 3, 2017
    ITLKSEZ

    ITLKSEZ Volvophilic

    Post Falls, ID
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    Well, I did the hours-long search last night on this thing and came up with nothing. I didn't find another single unit with a straight-cut gear, and the only transmissions it would concievably fit are obsolete crash boxes, or maybe a rare straight-cut 205 transfer case that no one seems to know when or what they came in. I guess it's scrap. :(
     
  5. Dec 4, 2017
    givemethewillys

    givemethewillys Sponsor Sponsor

    New Kent, VA
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    I hope someone finds info on these, it seems like if you could get it to fit between the frame rails, it would be pretty cool for a winch or on board air or something
     
  6. Dec 4, 2017
    Howard Eisenhauer

    Howard Eisenhauer Super Moderator Staff Member Sponsor

    Tantallon, Nova...
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    The SAE flange is standard, the gear will be specific to a make & model of a tranny.

    Maybe made by the tranny manufacturer, maybe made by the PTO equipment supplier. Maybe made by someone else. Whoever made it is probably long gone.
     
  7. Dec 4, 2017
    Oldriginal86

    Oldriginal86 Member

    Pasadena, Md.
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    As Howard stated, the case and flange are standard size. The sliding gear should be available for most PTO ready transmissions. A heavy truck or body dealer should be able to help with he correct gear.
     
  8. Dec 5, 2017
    fhoehle

    fhoehle Sponsor Sponsor

    Eynon, PA
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    Muncies are generally blue and aluminum That looks to be a Chelsea. They are usually cast iron and red with the aluminum cover with the little locating pins spaced around the shift cover for use with various brackets. Pull the gear and check for numbers on the gear itself. That will most likely be trans specific and may yield what it fits if you can get a competent parts person.
     
  9. Dec 5, 2017
    Daryl

    Daryl Sponsor Sponsor

    Bonney Lake, WA
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    Almost impossible to find info for 40 to 50 year old units. Unless you physically take it off a transmission yourself there really is no way to know what these fit anymore.
     
  10. Dec 5, 2017
    Keys5a

    Keys5a Sponsor Sponsor

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    My vote is also for a Chelsea. That looks pretty close to what I installed on our old '57 Mack B61 when we converted from a road tractor to a dump truck. It too had straight cut gears. I took that thing in and out about 6 times trying to get the shims set correctly. They were real noisy if they weren't set up correctly.
    -Donny
     
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  11. Dec 6, 2017
    fhoehle

    fhoehle Sponsor Sponsor

    Eynon, PA
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    Agree with the above post, be sure to shim correctly. Too loose is better than too tight.
     

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