Turbo 400 Condition after 24 years of abuse

Discussion in 'Transmission & Driveline Topics' started by 1980RS, Nov 28, 2017.

  1. 1980RS

    1980RS Veteran Member

    Jun 17, 2006
    I decided after 24 years of beating the crap out of the Camaro to take a look at the turbo 400 for a rebuild. So last night I popped out the front pump and took out all 3 clutch packs and expected to see some well, worn out stuff, you know what I found? a transmission that could go another 24 years. The clutches were all in mint shape with no signs of burning or wear. The Kolene steels were kind of glazed but that's to be expected. The only band it has had a touch of a burn in the center but other than it needing a new gear in the front pump it's getting new clutches and seals for another 24 years of use. The reason I thing it needs a pump gear as I am pretty sure the pump is being pulled out too far into the ring gear so I will have to add some thick washers to fix that. All in all I was really impressed with what I found.
  2. badazz81z28

    badazz81z28 Veteran Member

    May 4, 2001
    Las Vegas, NV
    You must not have beaten on it hard enough lol. Really a few seasons being rough on a transmission with an engine with some power will wear some parts out. What was it behind?
  3. Coadster32

    Coadster32 Veteran Member Lifetime Gold Member

    Oct 2, 2013
    Good to hear it takes a whooping.
  4. Dave Nelson

    Dave Nelson Veteran Member Gold Member

    Dec 19, 2003
    Vineland N.J USA
    In one of my race cars I ran a turbo 400 for a few seasons before switching to a powerglide, they are one tuff transmission.
  5. cadillac_al

    cadillac_al Veteran Member

    Apr 22, 2015
    I have never killed a th400 in my life. I figure you would have to drain the fluid out to hurt one. I'm not surprised that yours is still very useable.
  6. 1980RS

    1980RS Veteran Member

    Jun 17, 2006
    A 9 to 1 358, 3 454's, 400sb, 406 roller cam 12 to 1 comp, 396, 2 flat top 350's, stock Vortec 350, some with a lot of nitrous also. I thinks that all of them.

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