4 Speed

Discussion in 'Technical' started by Gary Stewart, Nov 26, 2013.

  1. Gary Stewart

    Gary Stewart Member

    Joined:
    Nov 27, 2007
    Messages:
    114
    Likes Received:
    1
    Trophy Points:
    45
    Location:
    north carolina
    Vehicle:
    74 comet gt
    any one know what easy bolt in 4 speed is for my 74 comet gt that has a factory 3 speed on the floor with factory matching # 302 engine??
     
  2. mav1970

    mav1970 Bob Hatcher

    Joined:
    Mar 9, 2002
    Messages:
    10,633
    Likes Received:
    322
    Trophy Points:
    398
    Location:
    Mountain Top Pa
    Vehicle:
    69.5 Maverick 393 Cleveland Stroker
    I'm pretty sure a short tail shaft top loader 4 speed will swap right out with your 3 speed. Not sure if the driveshaft splines are the same but that's a quick fix too :)
     
  3. bmcdaniel

    bmcdaniel Senile Member Supporting Member

    Joined:
    Jul 2, 2002
    Messages:
    6,831
    Likes Received:
    685
    Trophy Points:
    318
    Location:
    York. PA
    Vehicle:
    '70 Maverick Grabber
    And you may need a longer speedometer cable.
     
  4. baddad457

    baddad457 Member

    Joined:
    Feb 24, 2007
    Messages:
    5,861
    Likes Received:
    141
    Trophy Points:
    171
    Location:
    Opelousas La.
    Small block Toploader 4 speed with a Mav/Stang tailhousing. The driveshaft splines are the same, it should be a direct bolt in. Just make sure it's not an FE big block 390 unit. Those have a shorter input that does not reach into the pilot bearing when used with a small block bellhousing.
     
  5. mav1970

    mav1970 Bob Hatcher

    Joined:
    Mar 9, 2002
    Messages:
    10,633
    Likes Received:
    322
    Trophy Points:
    398
    Location:
    Mountain Top Pa
    Vehicle:
    69.5 Maverick 393 Cleveland Stroker
    I have a long tail shaft 4 speed Top Loader that was original to my Cleveland in my Gran Torino. Can I change it to a short tail trans :tiphat:
     
  6. baddad457

    baddad457 Member

    Joined:
    Feb 24, 2007
    Messages:
    5,861
    Likes Received:
    141
    Trophy Points:
    171
    Location:
    Opelousas La.
    What are you calling "long" ? Toploaders came in two tailshaft lengths, one is 24" overall, the other 27" They use different driveshaft lengths.
     
  7. dyent

    dyent Member

    Joined:
    Jan 29, 2012
    Messages:
    1,182
    Likes Received:
    455
    Trophy Points:
    258
    Location:
    vancouver bc
    Vehicle:
    1973 Comet 2 dr., 302 w/AR aluminum heads, Toploader 4 spd, 9" Trac-Lok w/3.70
    There was also a 3rd Toploader 4 speed used with the Sunbeam Tiger, its length was in between at approx. 25 1/4". Also, you can use a big block toploader with the shorter pilot ended/input shaft behind a small block, you just have to purchase a "stepped" pilot bearing, which basically makes up for the difference in length. I have a wide ratio 390 Toploader behind my 289 with the stepped pilot bearing.
     

Share This Page