1968 Cadillac Transmission Issue

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500, 472, 425, 368 Discussion, 1968 Cadillac Transmission Issue in Cadillac Engine Discussion; I own a 1968 Cadillac Calais with a turbo 400 transmission. I just recently took the engine down to bare ...
  1. #1
    suspect-1 is offline Cadillac Owners Member
    Automobile(s): 1968 Cadillac Calais
    Join Date
    Aug 2009

    1968 Cadillac Transmission Issue

    I own a 1968 Cadillac Calais with a turbo 400 transmission. I just recently took the engine down to bare block and rebuilt it, while the the engine was out I dropped the transmission and replaced the filter while it was out. Once everything went back in, the car drove fine for about a couple weeks, now the car doesnt want to go forward (only backwards) and the transmission fluid smells burnt. I was told my transmission is going out, so i dropped the pan and there were little metal shavings in the pan. I would like to take the transmission apart and kit it, but i have no idea where to start after I remove the transmission. I've searched for free/downloadable turbo 400 breakdowns with no luck. any suggestions/tips? I want to save money instead of taking it to a transmission mechanic but I will not start it without a technical manual. can anyone help me out? I've heard that they are not-so-easy to kit on your own, spend the money and send it to a mechanic. HELP!

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  3. #2
    BRUCE ROE is offline Cadillac Owners Fanatic
    Automobile(s): Eldorado
    Join Date
    Jun 2009

    Re: 1968 Cadillac Transmission Issue

    I wonder if you made sure, the torque converter could turn freely, after you bolted the engine to the trans, but before you bolted the torque converter to the flex plate? Failure here could damage the engine or the trans.

    The factory service manual says plenty about rebuilding, about any 68-79 should have the information. Its one of the easier ones to do, but pretty difficult without several special tools. The rebuild kits only have part of the parts you need. I have a few ideas on the subject on PHOTOBUCKET


    (that is a lower case "L"71, not an upper case "i"71)

    click on an Album at left
    click on a picture to enlarge, or
    click on "view as a slide show"

    Bruce Roe CLC # 14630

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