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  1. #1

    Default TH 400 Identification

    I have a TH 400 that came in an 85 1/2 ton 2wd pickup. Obviously, it's not the original tranny, the truck had a HO 305 swapped in. Anyway, I want to sell the tranny. Are there any numbers on it that might indicate the year and vehicle it came out of?

    Thanks!
    When you hear hoofbeats, look for horses not zebras.

  2. #2

    Default

    Quote Originally Posted by 2COR517 View Post
    I have a TH 400 that came in an 85 1/2 ton 2wd pickup. Obviously, it's not the original tranny, the truck had a HO 305 swapped in. Anyway, I want to sell the tranny. Are there any numbers on it that might indicate the year and vehicle it came out of?

    Thanks!
    There should be a tag on it with a 3 digit code. If you can't find it it doesn't really matter as the Chevy 400 2WD transmissions were all basically the same. Bolt on yoke with a short tail shaft.
    Jim

    2004 SILVERADO 2500HD LS
    Pro Comp Leveling Kit
    285-75-16 Cooper ST All Terrains
    Pro Comp Programmer
    Bilstein Shocks
    Linux Bed Liner
    Tinted Windows



    Other rides:

    1967 Landcruiser <350 Chevy>
    1970 Camaro
    1990 Geo Metro Convertible
    2007 FJ Cruiser

  3. #3

    Default

    I will look for the tag. Is it reasonable to assume if first and reverse work, the transmission is OK?
    When you hear hoofbeats, look for horses not zebras.

  4. #4

    Default

    Quote Originally Posted by 2COR517 View Post
    I will look for the tag. Is it reasonable to assume if first and reverse work, the transmission is OK?
    The best way to tell if the transmission is OK other than driving it is to pull the pan. If the fluid is clean and there's no metal and friction material in the pan then it's safe to assume the transmission is OK.
    Jim

    2004 SILVERADO 2500HD LS
    Pro Comp Leveling Kit
    285-75-16 Cooper ST All Terrains
    Pro Comp Programmer
    Bilstein Shocks
    Linux Bed Liner
    Tinted Windows



    Other rides:

    1967 Landcruiser <350 Chevy>
    1970 Camaro
    1990 Geo Metro Convertible
    2007 FJ Cruiser

  5. #5

    Default

    Hey thanks for the tip. The fluid looked fine when I was draining it out of the tailshaft. I will drop the pan though.
    When you hear hoofbeats, look for horses not zebras.

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