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700R4 Tranny

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by MA87K5, Apr 3, 2001.

  1. MA87K5

    MA87K5 1/2 ton status

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    I was checking my engine by powerbraking the tranny when it felt like the tranny let loose. Nothing popped or made a noise. Now I give a lot of gas just to start to roll. Does this mean that it is toast?
     
  2. Truckfan2

    Truckfan2 1/2 ton status

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    ANother question... has anyone heard of breaking the input teeth off the input shaft on these transmissions? Supposedly that is with I did to mine... any one have an extra 700r4 sitting around that they want to get rid of?

    Have been stuck (once) as of 8/12/00
     
  3. Daveytree

    Daveytree Registered Member

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    The problem might just be in the torque converter.
     
  4. bandit

    bandit 1/2 ton status

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    hmm sounds like you might of fried pull teh dip stick and smell the fuild it will smell fryed never heard of breack teethe but once saw a ford the rolled 3 times teh broke the input shaft

    Bandit
    (Your right i dont understand the jeep thing)
     
  5. Truckfan2

    Truckfan2 1/2 ton status

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    Me TC??? I was thinking that because again, supposedly, those torque converters are notorious for thier cases "expanding"... anyone know if there's any truth to that???

    Have been stuck (once) as of 8/12/00
     
  6. Blazerblk

    Blazerblk Registered Member

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    Thanks everyone for the replies. I talked to Rossler Transmission and they told me that it also might be the torque converter. I priced one at $65.
     
  7. freeforever

    freeforever 1/2 ton status

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    mine did the SAME thing...it was the TC...not to expensive. And thats a good price

    "Fool me once shame on you...fool me twice shame on me"
    ---------------
    "A closed mouth gathers no foot."
     
  8. riz

    riz 3/4 ton status

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    <font color=purple> Slow down , Bandit !

    L8r,
    . Riz . <A target="_blank" HREF=http://www.geocities.com/rizmonkey>http://www.geocities.com/rizmonkey</A>

    [​IMG]
     
  9. Emmettology 101

    Emmettology 101 3/4 ton status

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    A TC for $65??? Man, they usually run about $200 for the 700...


    <font color=green><A target="_blank" HREF=http://emmett.coloradok5.com>http://emmett.coloradok5.com</A></font color=green>[​IMG]
     
  10. Wheels

    Wheels 1/2 ton status

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    Heard of breaking the splines off the forward input clutch pack/sprag, but if that happens, then no forward. Hardened sprags usually fix this. A good replacement stock torque convertor (1654 stall) for a 700r4 runs about $70 buck from a supplier. Get the same unit from a tranny repair place and their markup will run you about $170 for the same item from the same supplier that you got the $70 price from.
     
  11. dyeager535

    dyeager535 1 ton status Premium Member

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    I know the early 200-4R's had un-hardened stator supports, which also mate up to the converter, and it is/was common for the teeth to wear off completely. I'm sure the early 700 had the same problem.

    Dorian
    My K5 and Chev/Olds tech/links page: <A target="_blank" HREF=http://www.dorianyeager.com/index2.html>http://www.dorianyeager.com/index2.html</A>
     
  12. jarheadk5

    jarheadk5 1/2 ton status

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    <font color=red>DON'T DRIVE IT ON A BAD CONVERTER!!!<font color=black> That will toast the rest of the trans, and you'll have a fresh converter on a trashed trans...[whoops] Just make sure to get the trans powerflushed (best), or change the fluid & filter a couple times back-to-back (okay), to avoid contaminating the rest of the trans.

    [​IMG] Semper Maintenance!
     
  13. Blazerblk

    Blazerblk Registered Member

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    Thanks everyone. But I think that I'll just change the tranny all together. I really don't want to change the converter and find out that the tranny is bad, and take it all apart again. I have very limited time. I bought a 92 tranny that came from a step side pickup for $400. The fluid is nice and red. The truck didn't look like it had alot of miles. It just had the front destroyed.
     

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