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th400 and np241

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by 454Blazer, Aug 3, 2001.

  1. 454Blazer

    454Blazer Registered Member

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    Location:
    Albuquerque, New Mexico, USA
    Hi Folks,

    Finally getting around to replacing the th350 behind my 454. I'm getting a th400 and I have an np241. Does the 241 bolt up to the th400? Anyone know what transfer cases were behind th400's?

    <a target="_blank" href=http://members.home.net/snarrlman/index.html>http://members.home.net/snarrlman/index.html</a>
     
  2. Jason73K5

    Jason73K5 1/2 ton status

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    Location:
    Fresno, Ca
    I picked up a stock 400/241 combo a few months ago, so they will fit. The transmission should be the long output shaft version, but I don't know if there is a difference in inputs on 350 and 400 model 241's. A 350/241 adapter will not fit the 400.

    73K-5: TBI350/TH-400/NP-203/14FF/D44
    Topless, doorless and no tailgate!
    Fresno, CA
     
  3. johnnysjimmy

    johnnysjimmy Registered Member

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    The output from the 350 is differant that the 400 so you will need to change either the output from the 400 or the input from the 241

    73' GMC Jimmy 8" lift and 35" tires.....14 boltff and big 10 bolt on the way
     

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