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How to detirmine what tranny you have

Discussion in 'The Garage' started by Justin Fleming, Dec 17, 2005.

  1. Justin Fleming

    Justin Fleming 1/2 ton status Premium Member

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    I went to the auto parts store and tried to get a new filter for my 86 k5 and eveything they brought out was different then what I hand in my hand. So I assume this is not the original tranny for this truck. So how do I determine what I have? It is a 4 speed auto I assumed it was the 700r4.... It has 16 bolts that hold the pan on........Any help would be appriciated....


    thanks
     
  2. sandawgk5

    sandawgk5 3/4 ton status

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    Compare the shape of your tranny pan to the pictures here.

    Ira
     
  3. Muddytazz

    Muddytazz 1 ton status

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  4. Justin Fleming

    Justin Fleming 1/2 ton status Premium Member

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    I just found this on the web......So I am certian it is part of the 700r4 family, but I guess someone must have swapped it out to the 4l60e.....Are these ones still A pos? What do you think about my symptoms??


    today when I took it out the trans did not seem to want to shift out of 1st gear. I really had to wind it up very high before it would shift. Other wise when I wind it up really high and then let off it still does not shift, but it seems to go into like a stall and when I gen back into the gas it revs then engauges into 1st.....any ideas?

    It does shift out of 1st if I tack it out and then it goes into second....

    seems like something is sticking or something
     
  5. Muddytazz

    Muddytazz 1 ton status

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    Governor?

    Oh, and the 4l60e is an electronically controlled tranny, the 4l60 is non-electronically controlled
     
  6. Justin Fleming

    Justin Fleming 1/2 ton status Premium Member

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    what should I expect if I was to drop the valve body......Will there be a bunch of check balls and springs?

    I think it is the 4l60e becasue there is like 4 electronic looking solenoids that I can see when the pan is off...

    Does anyone have a diagram for he 4l60e internals??

    thanks in Advacnce
     
  7. dave_90_blazer

    dave_90_blazer 1/2 ton status

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    is there a cable going from near where the dipstick tube goes into the trans up to the carb/TBI ?
    is there a white 4 pin electrical connector on the drivers side of the trans case?

    if yes, it is a 700R4
     
  8. sandawgk5

    sandawgk5 3/4 ton status

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    Some of the later 700r4s had the switches on the valve body all they really did was sense fluid pressure not sure of there purpose though.

    Ira
     
  9. dave_90_blazer

    dave_90_blazer 1/2 ton status

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    one is for the ECM to sense 4th gear(OD), others are involved with OD
     
  10. lamberthkp

    lamberthkp SITFU Premium Member

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    mid 80's gm changed the shape of the filter so that might be it , i think 86still had the old style
     
  11. dave_90_blazer

    dave_90_blazer 1/2 ton status

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    agreed
     

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