Torque Converter Install

Discussion in 'Wrenchin' Secrets' started by Utah455, Jan 28, 2019.

  1. Utah455

    Utah455 Platinum Level Contributor

    So my question is, what's the secret of putting the torque converter on the transmission input shaft? How many clunks do you hear when installing? 2 or 3? any recommendations on install? Oh, motor is a 72-76 455 block and tranny is TH400 from a GTO (drive train is definitely not numbers matching, makes for a fun restoration on finding parts). Thanks!

    History: I pulled my engine and tranny all at once about 3 years ago. I unbolted the trans and removed it from the motor. The torque converted stayed bolted to the flywhell. My understanding is that to put them back together is that I need to remove the torque converter and install it on the transmission first. Well, this weekend I unbolted the torque converter from the flywheel.
     
  2. Footbag

    Footbag Well-Known Member

    2 clunks unless you are very lucky and it goes in both spline sets in one go.
     
  3. johnriv67

    johnriv67 Well-Known Member

    TCI says that there should be a full 1 3/16" between the edge of the bellhousing and the torque converter bolts
     
    Last edited: Jan 31, 2019
    GS464 likes this.
  4. hugger

    hugger Well-Known Member

    You can spin it till the cows come home and it won't drop, you have to wiggle and work with it to get it to drop in
     
  5. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    It's 3 if you count the converter hub to the pump drive.

    95ConverterNeck.JPG
    See those two notches? If you line those notches up with the pump drive tangs, then it is 2 more engagements, one for the stator splines, one for the input splines. Turn, push, wiggle until it drops down all the way. Like John said, it should be 1 3/16" behind the bell housing mating surface.
     
    GranSportSedan and Utah455 like this.
  6. Utah455

    Utah455 Platinum Level Contributor

    Yeah, saw some you tube videos. Cleaned it up today and hopefully a quick splash of paint tomorrow.
     
  7. johnriv67

    johnriv67 Well-Known Member

    Huh I never even thought to paint mine. I guess that would be “adding weight” :D glad I didn’t
     
  8. yachtsmanbill

    yachtsmanbill Well-Known Member

    Let it dry for a few days or you may as well submit a DNA sample to the FBI...Youll do yer share of muscling it. ws
     
  9. Utah455

    Utah455 Platinum Level Contributor

    Ha, yeah thought about adding weight and making it lopsided. The old blue paint was falling off and had some surface rust. Figured drain it out, clean it up and refill it back up before putting it on the tranny.
     

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