FYI FORD - MustangSteve's Ford Mustang Forum
The Internet's Most Knowledgeable Classic Mustang Information
IF YOU HAVE A QUESTION ABOUT CLASSIC FORD MUSTANGS, YOU HAVE COME TO THE RIGHT PLACE!
MustangSteve has over 30 years of Mustang experience, having owned 30 of them and restored several others. With the help of other Mustangers, this site is dedicated to helping anyone wanting to restore or modify their Mustang.... THERE ARE NO DUMB QUESTIONS!!!!!
Visit MustangSteve's web site to view some of my work and find details for:
FYIFORD Contributors' PICTURES - Power Brake Retrofit Kits for 65-66 Stangs - Classic Mustang FAQ's by MustangSteve - How to wire in a Duraspark Ignition - Mustang Ride Height Pictures and Descriptions - Steel Bushings to fit Granada Spindles to Mustang Tie Rods - Visit my EBAY store MustangSteve Performance - How to Install Granada Disc Brakes MustangSteve's Disc Brake Swap Page - FYIFORD Acronyms for guide to all the acronyms used on this page - FYIFORD Important information and upcoming events

You are not logged in. Would you like to login or register?

  • Index
  •  » FYI Ford, Classic Mustang Tech Discussion
  •  » 3 speed manual transmissions.

    • 1 of 1

       

    4/23/2026 9:21 AM  #1

    daily driver
    FYI Addict

    Offline

    Registered: 1/02/2018
    Posts: 137

    3 speed manual transmissions.

    Hello All
    I'm not sure what year these transmissions are.
    I swapped 3 speed manual transmissions.
    The one just installed is apparently ideal for under dash Air Conditioner.
    The gear shifter is farther away from the dash and has a tighter 3 gear pattern.
    The transmission I removed has a wider 3 gear pattern, shifter travels closer to the dash and has taller gears. 
    The problem is the new tail shaft housing seal is leaking at the metal insert and getting worse.
    Stupid thing doesn't even look like the 2012 seal. I told AutoZone it was wrong.  
    The seal on the tail shaft housing from the previous transmission has stayed good since 2012.
    These transmissions use different shifters.
    These shifter mounts are different on the side of the housing. 
    Question is;
    And I know this is a long shot.
    Does anyone know if I can just swap the tail shaft housings?
    It seems the answer would be no. But I thought I'd ask you opinion...
    And another thing.
    How do I get my post reply email notifications back? 
    Edit; I know the tail shaft bolt to the ttrsnsmission is the same.
    Thank you!

    Last edited by daily driver (4/23/2026 11:22 AM)

     

    4/23/2026 9:51 AM  #2

    Greg B
    Senior 24-7 FYI Addict

    Offline

    Registered: 4/01/2013
    Posts: 1,798

    Re: 3 speed manual transmissions.

    Going to need a lot more information to help.   Can you offer any pics?

    6? V8?   Can you downshift transmission in the vehicle into 1st gear while moving?

    Last edited by Greg B (4/23/2026 9:53 AM)

    If multiple things can go wrong, the one that will go wrong will be the one that causes the most damage.
     

    4/23/2026 11:28 AM  #3

    daily driver
    FYI Addict

    Offline

    Registered: 1/02/2018
    Posts: 137

    Re: 3 speed manual transmissions.

    Greg B wrote:

    Going to need a lot more information to help. Can you offer any pics?

    6? V8? Can you downshift transmission in the vehicle into 1st gear while moving?

    I've had a hard time getting pics to work on here in the past.
    289. The bell housing fits the trsnsmissions.
    Yes, both are synchronized.

       •Thread Starter
     

     

    1 of 1

  • Index
  •  » FYI Ford, Classic Mustang Tech Discussion
  •  »  3 speed manual transmissions.

    • Board footera


    REMEMBER!!! When posting a question about your Mustang or other Ford on this forum, BE SURE to tell us what it is, what year, engine, etc so we have enough information to go on.