My 1994 GT Mustang Aode to T5 Conversion w/PICS!

Discussion in '1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-' started by 99FiveOh, Apr 1, 2009.


  1. 02 281 GT

    02 281 GT Active Member

    Joined:
    Feb 3, 2009
    Messages:
    399
    Likes Received:
    28
    Trophy Points:
    39
    Location:
    Kusel, Germany
    Yeah, that happened to me when I replaced the tranny in my '86 the first time around. Guy told me it was a good "no grinders!" tranny out of his "bone stock 5.0". Turned out that it was a 4-cyl T-5 which ground in third and fourth. I ended up saving up my pennies and buying a WC T-5 after that. At least now I know more about them, so I probably wouldn't repeat that mistake. Probably...

    Congrats on getting it back on the road! Video?
     
    #41
  2. 99FiveOh

    99FiveOh Advanced Member

    Joined:
    May 21, 2006
    Messages:
    2,176
    Likes Received:
    52
    Trophy Points:
    69
    Location:
    J-Ville, FL
    No video yet, not sure I want to do one with it grinding. It's embarrasing, people think I don't know how to drive a stick or something with it grinding all the time!
     
    #42
  3. fastgtfairlane

    fastgtfairlane New Member

    Joined:
    Apr 8, 2006
    Messages:
    277
    Likes Received:
    0
    Trophy Points:
    0
    mine grinded too when i put it in, turned out to be a clutch adjustment. grinds alil when its cold out in second. i would check the clutch adjustment before taking the tranny out.
     
    #43
  4. 99FiveOh

    99FiveOh Advanced Member

    Joined:
    May 21, 2006
    Messages:
    2,176
    Likes Received:
    52
    Trophy Points:
    69
    Location:
    J-Ville, FL
    I can feel from the pedal that it is right on the money, and 1st, 3rd and 5th work perfectly, so if the clutch was out of adjustment, then all gears would have the same problem, wouldn't you agree? Nah, it's definately synchro's gone south.

    I have a perfectly good 5.0 T5 sitting in my shed, I just like the really low gears of the 4 cyl T5's! And if I use the V8 trans, I'll have to change the pilot bearing which will necessitate pulling everything back off again.
     
    #44
  5. 02 281 GT

    02 281 GT Active Member

    Joined:
    Feb 3, 2009
    Messages:
    399
    Likes Received:
    28
    Trophy Points:
    39
    Location:
    Kusel, Germany
    Yeah, IIRC, the 4-cyl T-5 has a 3.97:1 1st as opposed to the V8's 3.25 (?). I don't remember the exact number. However, I do believe that the 4-cyl internals aren't as strong as the V8 tranny internals. I can't remember where I read about that, but I'm pretty certain that's the case. My '86 has 3.55s along with the 4cyl tranny, and it would pull about 3k rpms between 65 and 70mph.
     
    #45
  6. reddy351

    reddy351 New Member

    Joined:
    Jun 14, 2006
    Messages:
    468
    Likes Received:
    0
    Trophy Points:
    0
    Location:
    Columbus, Ohio
    Damn nice writeup!!!!

    Actually, the "internals" are exactly the same, except for the gear ratios. Since the 4 bangers have 1st gear ratios that multiply by either 3.97/1 or 4.10/1, the torque INPUT that the trans can handle is lower. V8 trannies have either 2.95/1 or 3.35/1, so they don't have as much leverage to break internal parts of the trans.

    Say you have a smallblock that produces 300# of torque. When you multiply that by 2.95, you are putting 885 # of torque through that gear set.

    If you multiply the same 300# by 4.10, you are putting 1230# of torque through that gear set.

    If the "max torque" that the gear material could safely handle was say 900#, then the max torque you could put into the gearset is about 215#. Which would be about the same torque through the material as the 2.95 gear and 300#.

    Too "wordy"?
     
    #46
  7. 99FiveOh

    99FiveOh Advanced Member

    Joined:
    May 21, 2006
    Messages:
    2,176
    Likes Received:
    52
    Trophy Points:
    69
    Location:
    J-Ville, FL
    Yeah man, makes alot of sense! My car is still pretty much stock right now so I figured the 4 banger trans would be sufficient and would add a little to the SOTP feeling! And it does, just has bad synchros. I may just replace them if it's as easy as that, but if I have to press gears off and such, I'll be more likely to just install the V8 t5 I have. I just don't want to go all the way back to the motor to get the pilot bearing changed!

    I was hoping this trans would hold till I put my Exploder motor in.
     
    #47
  8. 02 281 GT

    02 281 GT Active Member

    Joined:
    Feb 3, 2009
    Messages:
    399
    Likes Received:
    28
    Trophy Points:
    39
    Location:
    Kusel, Germany
    Slightly verbose, yes, however, makes tons of sense. Thanks for clearing that up! :nice:
     
    #48
  9. 99FiveOh

    99FiveOh Advanced Member

    Joined:
    May 21, 2006
    Messages:
    2,176
    Likes Received:
    52
    Trophy Points:
    69
    Location:
    J-Ville, FL
    Well, it turns out the other T5 I have is not a V8 one at all, but a SVO TC 4cyl transmission. I went ahead and installed it and the car drives like a dream now, nice and smooth. No more grinding gears!

    Mission accomplished!
     
    #49
  10. 02 281 GT

    02 281 GT Active Member

    Joined:
    Feb 3, 2009
    Messages:
    399
    Likes Received:
    28
    Trophy Points:
    39
    Location:
    Kusel, Germany
    Sweet! Video? ;)
     
    #50
  11. 99FiveOh

    99FiveOh Advanced Member

    Joined:
    May 21, 2006
    Messages:
    2,176
    Likes Received:
    52
    Trophy Points:
    69
    Location:
    J-Ville, FL
    I've seen a few people having issues with the mounting situation and I noticed I didn't do any pics of the mounting plate mods, so I made a little diagram of what to do to the AODE hanger plate:

    [​IMG]
     
    #51
  12. UTGAMER

    UTGAMER New Member

    Joined:
    Feb 26, 2010
    Messages:
    219
    Likes Received:
    0
    Trophy Points:
    0
    Location:
    Dalton, GA
    Nice thread man. Wish I would have found this yesterday! Where was u ? lol

    Seriously though props to this thread, it should be a sticky
     
    #52
  13. Kornnut

    Founding Member

    Joined:
    Nov 25, 2000
    Messages:
    2,181
    Likes Received:
    23
    Trophy Points:
    58
    Location:
    DFW
    Damn good pics and write up.
     
    #53
  14. 99FiveOh

    99FiveOh Advanced Member

    Joined:
    May 21, 2006
    Messages:
    2,176
    Likes Received:
    52
    Trophy Points:
    69
    Location:
    J-Ville, FL
    Thanks, I appreciate that!
     
    #54
  15. onestripevert

    onestripevert Member

    Joined:
    Nov 17, 2007
    Messages:
    58
    Showcase:
    7
    Albums:
    1
    Likes Received:
    0
    Trophy Points:
    6
    Location:
    knxville, tn
    video?
    nice job btw
     
    #55
  16. 99FiveOh

    99FiveOh Advanced Member

    Joined:
    May 21, 2006
    Messages:
    2,176
    Likes Received:
    52
    Trophy Points:
    69
    Location:
    J-Ville, FL
    I thought about the video thing but then I wondered, what exactly would the video be of? lol
     
    #56
  17. fastgtfairlane

    fastgtfairlane New Member

    Joined:
    Apr 8, 2006
    Messages:
    277
    Likes Received:
    0
    Trophy Points:
    0
    A little correction for you. The T4MO computer pulls timing between shifts the U4P0 does not. You are correct about being able to correct it with a tuner and shut the auto tranny functions off. The pulling of the timing is actually called " tip in retard." How did your swap go?
     
    #57
  18. 99FiveOh

    99FiveOh Advanced Member

    Joined:
    May 21, 2006
    Messages:
    2,176
    Likes Received:
    52
    Trophy Points:
    69
    Location:
    J-Ville, FL
    The swap has been done for about a year now, this is an old thread! lol

    And I'm not sure if it's "timing" that the U4PO or W4HO ecm is pulling, but if you try to use one with a 5 speed car it will have a huge hickup/backfire as you are accelerating. I've been there, done that. When the auto computers think it's time to shift they either pull timing or fuel between shifts. I know it backfires when it does it, but I can't remember if it's through the intake or exhaust.
     
    #58
  19. UTGAMER

    UTGAMER New Member

    Joined:
    Feb 26, 2010
    Messages:
    219
    Likes Received:
    0
    Trophy Points:
    0
    Location:
    Dalton, GA
    So im gonna be doing this, but Im not converting from an auto to man. So I wont have to take all this out, right? I I have an aluminum quadrant, it looks to me like maybe I could just take the pins out of the side and take plastic off and put alum on? I know its not gonna be that easy
     
    #59
  20. 99FiveOh

    99FiveOh Advanced Member

    Joined:
    May 21, 2006
    Messages:
    2,176
    Likes Received:
    52
    Trophy Points:
    69
    Location:
    J-Ville, FL
    Correct, you won't have to remove the pedal assy. I did because I was converting and couldn't use the auto pedal assy.
     
    #60

Share This Page