New ST/300/D owner, with questions.

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Thread: New ST/300/D owner, with questions.

  1. #1

    New ST/300/D owner, with questions.

    Picked this up tonight for $200 four minutes from my house. I collect and restore old garden tractors, so this thing is new to me. First question, what are the weak points of the machine? Second, how stout are the transmissions? Would is be possible to upgrade to 12" rims? Can they handle a plow? Thanks everyone! Looking foward to learning about this thing! 00R0R_iy5bFsgsnuu_600x450.jpg

  2. #2
    Join Date
    Sep 2013
    Location
    Caldwell, Idaho
    Posts
    1,174
    Polara back there? Sorry me Mopar guy had to ask
    ST400R ATTEX(Smiley)
    500 Super Chief


    I love the smell of Blendzall in the morning

  3. #3
    No idea...that's a pic from the ad. Nothing but Ford in my yard! Need to find the wheel/axle bearings, anyone know of where to find them?

  4. #4
    Join Date
    Sep 2012
    Location
    Hanover,PA
    Posts
    1,012
    Quote Originally Posted by Andyman View Post
    Polara back there? Sorry me Mopar guy had to ask
    FUNNY ANDY ! I spotted that first also ! LOL
    I am sure 12" wheels will Not fit .
    If it has a T20 in it its Very tuff. You will find all you need as far as info and parts on here.

  5. #5
    Has a Baker-Hill 7000. How stout are these trannies?

  6. #6
    Join Date
    Jun 2007
    Location
    Northern VA
    Posts
    2,766
    The 7000 isn't a bad unit, though not as tough as the T20, and somewhat higher maintenance. Attex used them with a 400cc two-stroke without too many problems, and some of us have pushed that style transmission a little further.
    Stuck in the seventies- not in the swamp.

    (6) Attex, a Hustler, a Super Swamp Fox, (2) Tricarts, (3) Tri-sports, a Sno-co trike, 3 Dunecycles, and a Starcraft! ...so far

  7. #7
    My want for it is to make a trail rig. Needs a roll cage, winch, lights, that type stuff. Also going to run 22x11x8 tires all around. May swap motor to a bigger 2 stroke too. Anyone know what # the wheel bearings are?

  8. #8
    Join Date
    Jul 2009
    Location
    Cleveland,Oh.
    Posts
    1,589
    Anyone know what # the wheel bearings are?

    Standard insert bearings. UC205-16 or HC205-16 (set screw or eccentric collar,which ever you prefer) then add suffix RR3 for triple lip seal if desired. They are 52mm O.D. x 25mm I.D.

    Call Buffalo Bearing they'll set ya up.

  9. #9
    hey there buddy im a long time attex specialist on all models i had one of those 30 years ago i have alott tpo tell ya about it good and bad in differant catogories my primary email is jketch@optimum.net easier to communicate on my email rather then hear for ya my phone # is 619-370 4503 im a top guy on mchanics on attex'a email me and or call lot to tell ya what can become a pain in the ass'' with the old style ST 300's thats why they were update to the 400 thunder chiefs then even better'' to the super chiefs 500 i had all 3 john 619-37-4503 call any time

  10. #10
    Join Date
    May 2009
    Location
    NJ 08533
    Posts
    5,052
    There are pictures in member Larryw's gallery showing both types of bearing carriers for the st's, not sure if the part numbers are there or not. There is probably a thread on the bearing replacement on those machines in the Attex forum somewhere, perhaps Don or Duck89 has the bearing numbers. I had thought of updating mine to the bearings JoeMeg mentioned but some investigation on whether there is enough frame for the flanges would be needed. My machine is still in the back 40 so I have now info.
    As far as the engine, if that one runs I'd leave it be until you shake down the machine and go from there. It also looks like a big crack in the front, there are threads on ABS repair in the forum.

    There is a downloadable manual on the home page, one of those manuals has a complete trans manual and the other doesn't, other than the shaft and associated part numbers they are the same in principal/operation.


    My new beer holder spilled some on the trails - in it's hair and down it's throat.
    Joe Camel never does that.

    Advice is free, it's the application that costs.

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