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700R4 Question

Discussion in 'The Garage' started by derikleon, Feb 12, 2007.

  1. derikleon

    derikleon Registered Member

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    Lawrence, KS
    Ok I'm trying to find out when the 700R4 went from a 4 bolt flange at the rear to a 6 bolt?

    Up until today i thought they were all 4 bolt, so im kinda confused.

    Thanks guys!
     
    Last edited: Feb 12, 2007
  2. Jrgunn5150

    Jrgunn5150 1/2 ton status

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    I've had the original in my 87, a junkyard unit, one from Monster transmission on Ebay, and my current TCI Truckmaster, and they all have 4 bolt's. Did you see one? Or did someone just tell you there was one?
     
  3. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

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    That tranny is actually the 4L60E and they went to six bolt tail hosuings around mid 90's IIRC. I did a quick search on google and it appears that the 6 bolt tail housing started in either 1997 or 1998.
     
  4. darryl

    darryl Registered Member

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    edmonton canada
    1996.5 in the vans and 4.3 2wd and 1997 in the fullsize trucks and they also went removable bell and then bigger input and stronger torque in 1998
     

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