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MM1 to Speedcast

Discussion in 'Fisher Engineering Discussion' started by Troy5061, Feb 4, 2011.

  1. Troy5061

    Troy5061 Member
    Messages: 54

    I have a 7.5' MM1 3wire and I have found a 8' speedcast moldboard (blade) and "A" frame for sale locally, will this fit my plow?
     
  2. sweetk30

    sweetk30 PlowSite.com Addict
    Messages: 1,588

    8ft up mostly ran the 25 1/8 " spacing ears.

    7 1/2 ft down ran the 22 1/2" spacing ears.

    best to just measure to be sure.
     
  3. buddymanzpop

    buddymanzpop Senior Member
    Messages: 599

    No, find a 7 1/2, 8 ft and 9 ft are interchangeable but the MM1 and conventional 7 1/2 are specific, your best bet is to find a conventional 7 1/2 and swap moldboards as the A frame would need to modified to accomodate the headgear spring.
     
  4. Troy5061

    Troy5061 Member
    Messages: 54

    Finding another 7.5' blade would be useless as mine is fine. I want to go bigger, 7.5' is to small for a 3/4ton truck. I know the A frames are different 7.0+7.5 to 8, 8.5 and 9 but I should be able to change my A frame to the 8-9ft style but I don't know if the speedcast and MM1 8-9ft A frames are the same.
     
  5. sweetk30

    sweetk30 PlowSite.com Addict
    Messages: 1,588

    Last edited: Feb 5, 2011
  6. loudredram

    loudredram Member
    Messages: 88

    what you need is Aframe part number 22168 it converts HD blade to RD head gear..... I just did this to my plow
     
  7. buddymanzpop

    buddymanzpop Senior Member
    Messages: 599

    loudredram, what did that A-frame cost?
     
  8. loudredram

    loudredram Member
    Messages: 88

    It lists for 433.00 and my dealer hooked me up and sold it to me cheaper then CPW has it for I paid 367.00 for it