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th 400 questions

Discussion in 'The Garage' started by short sub, Jul 13, 2005.

  1. short sub

    short sub Registered Member

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    ive had my 400 in the burban now for a few months but finally took it down the road and i noticed that it shifts out of gear way before it should- even if i manually shift it. I try to make it build power higher in its range and the tranny shifts before it should IMO. any suggestions?? thanks Ryan
     
  2. josh86k10

    josh86k10 1/2 ton status

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    Did it originally come from behind a diesel? May need to recalibrate the governor. Summit sells kits to do this.

    http://store.summitracing.com/

    part # BMM-20248 $29.88
     
  3. llegos

    llegos Registered Member

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    diesel is a possibility, what RPM is it shifting at?
     
  4. Joshinator

    Joshinator Registered Member

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    When youre building power while manuel shifting, do the lines on the road look like dots?
     
  5. short sub

    short sub Registered Member

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    while manually shifting it shifts at around 4800. i really appreciate the ideas but what yall are tellin me is that i need to swap this new th400 out for a built 700 right??? :wink1: well let me know why its shifting so low later Ryan
     

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