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Tranny swap fit question????

Discussion in 'Ford Trucks' started by 20Silverado05, Jun 7, 2011.

  1. 20Silverado05

    20Silverado05 Senior Member
    Messages: 465

    A friend at my work has a 86 Ford tow truck minus the towing equipment . He is in the workS of putting a regular bed on the back. But his question to me is will a 5 speed from an 1987 Ford 7.3 bolt up to the block of his 1986 6.9? Anyone with any info would be greatly appreciated . Thanks, Eric.
     
  2. tjctransport

    tjctransport PlowSite.com Addict
    Messages: 1,390

    yup. 7.3 diesel to 6.9 diesel is a direct match.
     
  3. damian

    damian Senior Member
    Messages: 330

    you will need a dual mass flywheel or a dual mass retro fit clutch,if you do not use this,just as the factory did,the zf transmission with sound like it is coming apart. the 6.9 did not use the zf trans,only the 7.3.but yes they do bolt up.