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need some 700r4 help

Discussion in 'The Garage' started by MEPR, Mar 27, 2005.

  1. MEPR

    MEPR 1/2 ton status

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    alrighty i wanted to know about what my rpm drop should be in 4th when my tc locks up. The blazer is on 31s whith 308 gears. At about 60 i see a drop of 200-300 rpm, but when im in 3rd ill see a drop of around 400-600rpm. is this kinda normal?
     
  2. big83chevy4x4

    big83chevy4x4 3/4 ton status

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    yep, its normal. the drop depends on the stall ratio of the converter, a higher stall will have a higher drop when it locks up.
     
  3. karmannghia

    karmannghia Registered Member

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    700r4 Swap

    My friend just totaled his 92 shevy stepside. I have an 89 k5. Would his 700r4 trany fit in my truck? How about the computer module or anyother electrical hookups like that? I an not up on things like this.
     
  4. 1979jimmy350

    1979jimmy350 1/2 ton status

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    yes it will bolt in it is the same gm did not go to the 4L60E until 93
     
  5. fordeater

    fordeater 1/2 ton status Premium Member

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    nice hijack
     
  6. karmannghia

    karmannghia Registered Member

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    Thanks I will tell him that he has to start parting out his truck so I can use hit Tranny
     
  7. MEPR

    MEPR 1/2 ton status

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    so a diference of about 200rpm from 3rd to 4th is normal then?
     

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