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700r4 casting #'s???????

Discussion in 'The Garage' started by outlaw612, Jun 15, 2003.

  1. outlaw612

    outlaw612 1/2 ton status

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    700r4 casting #\'s???????

    Does anyone know where I can decifer the casting numbers or tell me wnere to get the info. I need to figure out what year the trans is. Here are the numbers:

    Casted into the case=8663548 and on a glued on tag=06TR and 864081.

    Thanks for your help.
     
  2. BobK

    BobK 1/2 ton status

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  3. outlaw612

    outlaw612 1/2 ton status

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    Re: 700r4 casting #\'s???????

    Thanks for the link! According to that, the trans is an 88, I was hoping it would be the 82-86 style.

    Thanks Again!
     
  4. HarryH3

    HarryH3 1 ton status Author

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    Re: 700r4 casting #\'s???????

    [ QUOTE ]
    I was hoping it would be the 82-86 style.

    [/ QUOTE ]
    Why? The '88 is a MUCH better tranny! /forums/images/graemlins/thumb.gif GM redesigned a lot of the internals of 700R4's for the '87 model year, due to an incredibly high failure rate of earlier models. They all have the some bolt patterns, etc. so the newer model will bolt into an earlier rig. /forums/images/graemlins/cool.gif
     
  5. outlaw612

    outlaw612 1/2 ton status

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    Re: 700r4 casting #\'s???????

    The only problem with the 88 and up trans is the auxilary valve body. In my 86, I had a valve installed that allows the lockup converter to automatically lock, this allows the electronics to be removed so I no longer have to worry about the converter not locking. With the newer trans you cannot use this valve. Its kinda like a failsafe, my wiring screwed up and burned up my last trans and now I dont have to worry about it. /forums/images/graemlins/thumb.gif
    Ive done alot of upgrades to the older trans also, its about as bulletproof as a 700r4 can be. (That is if you can say "bulletproof" and "700r4" in the same sentence) /forums/images/graemlins/rolleyes.gif
     
  6. tone91

    tone91 Registered Member

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    Re: 700r4 casting #\'s???????

    Hey, is that the one that I traded you a few weeks ago?
     
  7. outlaw612

    outlaw612 1/2 ton status

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    Re: 700r4 casting #\'s???????

    No, this is a different one. I couldnt remember what year the one I got from you was and I was looking for a backup just incase it wasnt the right one. I just found out last night that it is the correct one though. /forums/images/graemlins/thumb.gif
     
  8. outlaw612

    outlaw612 1/2 ton status

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    Re: 700r4 casting #\'s???????

    When I talked to my trans guy last night he told me you can also look at the servo cover to ID the year. Right in the center of the cover will be a #, it kinda has like a star around it. That is the year. For example, a 3 is an 83, 4 is an 84....
     
  9. BobK

    BobK 1/2 ton status

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    Re: 700r4 casting #\'s???????

    I heard if you install a check ball where the T/C lockup solenoid is you can eliminate all electronics and the 700 will lock up in 2nd,3rd+4th automatically.
    Got that info here

    More specifically here it's about half way down the page under "Idea using no lockup kit"
    /forums/images/graemlins/grin.gif
     
  10. tone91

    tone91 Registered Member

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    Re: 700r4 casting #\'s???????

    that's good. I thought the truck was pretty much all original when I bought it. Glad to hear it will work for ya. /forums/images/graemlins/thumb.gif
     
  11. outlaw612

    outlaw612 1/2 ton status

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    Re: 700r4 casting #\'s???????

    Im not sure how it was done, but all I know is I didnt hook up any wires and the lockup still worked. /forums/images/graemlins/thumb.gif
     
  12. outlaw612

    outlaw612 1/2 ton status

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    Re: 700r4 casting #\'s???????

    Yep, everything worked. Hopefully Ill have the truck back together by the end of July. BTW, did the parts cleaner work for ya?
     
  13. tone91

    tone91 Registered Member

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    Re: 700r4 casting #\'s???????

    Actually I haven't had to use it yet. I'm still working on replacing the floor in the rear of the blazer. But I'm sure it will work well. Thanks. /forums/images/graemlins/thumb.gif
     

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