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TH400 gear ratio?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by 45acp, Jan 16, 2002.

  1. 45acp

    45acp 1/2 ton status

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    I recently saw a chart of all GM transmission gear ratios but I do not remember where it was. Does anyone know what the 1st gear ratio is in the TH400? I would like to use the numbers to determine the crawl ratio in Stephens post.
    Thanks, Bill

    <font color=red> Bill, "Shop Rat" </font color=red>
    http//community.webshots.com/user/bhughes85713
     
  2. CK5

    CK5 In my underwear Administrator Premium Member GMOTM Winner Author

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    All the ratios are listed on the specs page, click the 'Specifications" link at the top of this page. TH400 is a 2.48 1st gear.

    Steve

    Director of Global Expansion
     
  3. Greg72

    Greg72 "Might As Well..." Staff Member Super Moderator

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    Also try the Advance Adapters website.....pretty good writeups on each transmission, and all the gear ratios are listed.



    -Greg72

    '72 K5 Blazer - 427BB/TH350/NP205/6" Lift/35x12.50's
    <font color=blue>See it here: </font color=blue><a target="_blank" href=http://coloradok5.com/gallery/albun38>http://coloradok5.com/gallery/albun38</a>
     
  4. 45acp

    45acp 1/2 ton status

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    I'm not blonde but - daaa
    I remember where I saw it now. Thanks, Bill

    <font color=red> Bill, "Shop Rat" </font color=red>
    http//community.webshots.com/user/bhughes85713
     

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