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Manual to Auto conversion

Discussion in 'Ford Trucks' started by ksland, Sep 5, 2003.

  1. ksland

    ksland Senior Member
    from ma
    Messages: 420

    I have a 4 speed Manual 1987 f250 4x4 with a 4.9L. I want to convert it to an automatic using a C6 transmission. I know I will need to add a floor shifter or switch columns, add tranny lines and a cooler, but what about length? Will I need to find different driveshafts? And what about the crossmember? Maybe getting the driveshafts and the crossmember out of a c6 truck is my best bet but I would like to know if thats my only option.
  2. Pelican

    Pelican 2000 Club Member
    Messages: 2,075

    I did the conversion on an '81 350 with 4 speed and everything just swapped in. I swapped the column, it was easy enough to do. The only thing I had to fabricate was the wiring for the neutral lockout switch, that wasn't tough either.
  3. wyldman

    wyldman Member
    Messages: 3,265

    It will all swap in,but I can't tell you on the trans length.I think with the newer truck they were different lengths.It wouldn't hurt to get a complete donor truck if possible,so you'll have all the part you need.If not,you should be able to modify the crossmember to work if needed,and have a driveshaft shop do the driveshafts if necessary.

    A universal floor shifter could be used instead of swapping columns.
  4. Pelican

    Pelican 2000 Club Member
    Messages: 2,075

    I'll measure mine up tomorrow, there might be a spacer between the tranny and the transfer case, I can't remember.