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tranny drain plug

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by WakeBoard&4X4er, Aug 31, 2001.

  1. WakeBoard&4X4er

    WakeBoard&4X4er 1/2 ton status

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    I do not think that 700r4 ever came stock with a drain plug, but I do not know all the much about GM stuff (but learning). In the bottom of the pan on my 700rf there is a drain whole and do not think that is stock, so my guess is that the prev-owner drained the trany once (if not more). Not know when this happened I am going to do a easy drain of the tranny and change of the filter. Last weekend when I was at my local Auto parts store, I saw a temp gauge that had about 5 different fittings for a whole. I was thinking can I use the whole that was used for the drain to place the sending unit in and be ok? This will mean that the wire that goes to the gauge on the dash will hang down from the pan. Will this get ripped out of the pan off-roading?
    My K5 is a stock 91 with 4 inch lift, 33s, after market tranny cooler. What do you all think?
     
  2. ftn96

    ftn96 1/2 ton status

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    No the 700's never came stock with the drain plug. The drain plugs rock. Dont use it for the sending unit.

    What is and what should never be....
    <a target="_blank" href=http://www.nashvillek5.freeservers.com>www.nashvillek5.freeservers.com</a>
     
  3. I second that! A drain is a drain.

    God has a hard on for Marines, because we keep Heaven chock full of fresh souls!
     
  4. Leadfoot

    Leadfoot 1/2 ton status Premium Member

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    There is a plug above the shifter input shaft on the 700 designed for reading pressures and(with a Tee)/or temp senders. Use that instead (I believe it's 1/8 NPT, but not 100% positive, it's been a while since I did mine).

    See my rig at <a target="_blank" href=http://coloradok5.com/gallery/Leadfoot>http://coloradok5.com/gallery/Leadfoot</a>
     
  5. txbartman

    txbartman 1/2 ton status

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    How often should you change the filter? Should you do it with every oil change? If so, I guess the drain would help with the mess, but wouldn't keep you from having to drop the pan.

    Brian
    Click to see <a target="_blank" href=http://tx85gmcguy.alloffroad.com> My 85 Jimmy </a>
    Who put a stop payment on my reality check?!?
     
  6. Emmettology 101

    Emmettology 101 3/4 ton status

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    I htink normal tranny fluid changes are required around 25-30K miles..... But if it sees alot of hot off-road use, sooner would probably help!

    Mike

    <font color=green>"My K5 is purdyr than your sister!"</font color=green>

    <a target="_blank" href=http://www.geocities.com/emmettology101>www.geocities.com/emmettology101</a>
     

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