T-45 rebuild

Discussion in 'Drivetrain' started by amf201091, May 20, 2020.

  1. amf201091

    amf201091 New Member

    Messages:
    79
    Likes Received:
    44
    Joined:
    Apr 23, 2020
    Location:
    Omaha, Nebraska
    Under hard acceleration at higher RPM's, I'm getting a grind every time when shifting from 1-2, 3-2. Think I'm going to rebuild the t-45. How do I make this thing bullet proof?
     
    Last edited: May 20, 2020
  2. Jakespeeds

    Jakespeeds Member

    Messages:
    233
    Likes Received:
    28
    Joined:
    Oct 20, 2015
    Location:
    Camarillo, California
    I did mine a few years back. I was lucky enough to have a guy locally that had been doing the T45 for years and had built a bunch of check gauges and fixtures for putting the together correctly. The factory Ford upgraded 3, Reverse fork took three tries before we got one that was within spec. They were all formed a little different. Then trying to get the clusters to shift correctly was a nightmare. Do what you want but with the knowledge I have now and the experience. I would sell it on Craigslist for whatever I could get and upgrade to a better transmission. That is just my personnel experience.

    Jake
     
  3. amf201091

    amf201091 New Member

    Messages:
    79
    Likes Received:
    44
    Joined:
    Apr 23, 2020
    Location:
    Omaha, Nebraska
    I totally would if I could afford it!! I don't plan on making 300hp or more anytime soon so improving the t-45 seems like the best option for me. I'm just not familiar with the t-45 or transmissions in general, so I'm seeing if there is a kit I could buy that would improve the t-45's overall performance.
     
  4. white95

    white95 Apex Junky Admin

    Messages:
    16,925
    Likes Received:
    3,469
    Joined:
    Dec 30, 2007
    Location:
    Prairieville, LA
    This is a good recipe: Carbon synchronizers, billet shift forks and bronze pads

    @lwarrior1016
     
    Boostr1 and Addicted like this.
  5. lwarrior1016

    lwarrior1016 Moderator Staff SN95 Supporter

    Messages:
    5,856
    Likes Received:
    974
    Joined:
    Sep 22, 2014
    Location:
    South Mississippi
    White just outlined what I’ve done to mine. It shifts good at 7500 rpm and never let me down. Now, I didn’t have shifting issues prior to the build like you are, so there are some things I didn’t do. I did not change bearings and I did not have to set shaft endplay like Jake was talking about. Look on line for a pdf version of the t45 rebuild manual and see if it’s something you’ll have the tools to do.

    I just got done doing a t56 and tooling was a big time hold up.
     
  6. Werecow

    Werecow Well-Known Member

    Messages:
    1,043
    Likes Received:
    776
    Joined:
    Feb 3, 2020
    Location:
    Virginia
    Don't know if this will help you out or not, but if you look on YouTube there's a guy named junkyard Dogg that goes through a complete T5 rebuild that might help.. it's a 2 part video that is pretty long but is in depth if you wanna look it up and check it out. He's got a lot of other good tech tips and videos as well if you look him up..
     
  7. OLD H2S

    OLD H2S Well-Known Member SN95 Supporter

    Messages:
    1,186
    Likes Received:
    217
    Joined:
    Jul 4, 2015
    Location:
    Silver Spring Maryland
    I did the T45 my self and to me the hard part was getting the parts. But I kept at it because of the reviews saying how good the T45 is with the right parts and how much torque it can hold. I have pushed 400HP and 450T through mine, I am pushing 300/300 through it now. I did not go for the 28 spline input shaft because you really got to dump on the trans to brake the 10 spline but for a power adder then... I do not drag race but I do beat on the car HARD and with the Torsen diff that really limits tire spin I am pushing the trans to lots of torque multiplication. The stories of how smooth the built T45 made me do mine and it is smooth shifting under power and people that drive it ask me first thing what is the trans because they shift better than anything else. Is it true? I do not have enough experience to say but this set up is the best part of the car and makes you want to beat on it more. I am running a Steeda TriAx and that has been good and adjustable for 23 years.
    As far as the build it self, it was ok, not easy but it is just bit fiddely . I have done other manual trans because when I got pros to do it I am disappointed with the out comes, I do it myself. The main tool is a GOOD big snap ring plier. A press to get the bearings on and off, if you do the bearings. I could not find much info on how to do the procedure so make notes and take lots of pictures. The problem I had was the sequence of assembly. I had to learn the pattern and that took time to take things back apart when I got too far ahead on one shaft and not the other. You can assemble a shaft but it is more of building both at the same time from the middle outward, If that make since, I would get too far ahead and have to back up, so it is do one part then go to the other shaft and add a part and jump back and forth.
    It took be 2 days to get it right but I did it 3 times. Why because it was good BUT.. I would see or feel something and figure out what it was and what could make it better by adding a shim washer and that what was the secret, just getting all the slop out of it. I have some pictures somewhere. Over all I would be sad to sell the car with this trans in it. This is a Ford design problem from the bosses.. make it cheaper. Just changing a few parts make a world beater that would have made the T45 In high demand still but stock you can not give them away.
    Sorry for the rant but it is not BullShit if you have done it.
     
  8. joe65

    joe65 Active Member

    Messages:
    859
    Likes Received:
    693
    Joined:
    Feb 4, 2020
    This is interesting to hear. I've been debating what to do with mine. It has 200k miles on it, but it still works fine, but its on stock hp. I had my mind set on a gforce 3650 but those things are over $3k.
     
  9. cwgu3

    cwgu3 New Member

    Messages:
    4
    Likes Received:
    1
    Joined:
    Nov 4, 2019
    I rebuilt mine last year, Not that difficult but I'm a mechanic. Amazingly enough you can find parts for these but you really have to spend some keyboard time finding them at good prices. Best thing to do is search for another t45 that someone just wants rid of to pull parts from if you need them. Bearings and races are easy to find as are seals . I have the Ford Service Manual on PDF if you want it give me you email address and ill send it to you.
     
  10. 96blak54

    96blak54 Legend

    Messages:
    7,666
    Likes Received:
    1,001
    Joined:
    Feb 21, 2011
    Location:
    Ky
    Eaton lock ring pliers
    bosch-snap-ring-pliers-otc714-64_300.jpg
    A press
    A big dead blow hammer or heavy hammer some blocks of wood.

    One of the lock rings resides under a component name that escapes me, but this particular lock ring was made soft and needs to be placed back into that location even though its dimensions are the same as the others
     
  11. joe65

    joe65 Active Member

    Messages:
    859
    Likes Received:
    693
    Joined:
    Feb 4, 2020