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700R4, internal difference in 4.3 S-10 and 350 K5?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by pcorssmit, Feb 27, 2002.

  1. pcorssmit

    pcorssmit 1/2 ton status

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    Anybody know what the actual difference is between a 700R4 out of an '89 S-10 w/a 4.3 and a full size with a 350 is? I'm thinking along the lines of clutch packs, etc. I'm picking it up later tonight, for basically the price of a core. I need a tranny to get me by for a year in the Blazer. Basically, I just need to know if it will hold up. I plan on doing the ORD doubler and a new trans next winter, but my current trans is hammered beyond the point where I'd trust it. The truck is not a DD and specs are in sig.

    Thanks,

    Pete



    '83 K5, 350 TBI (ex 6.2), 700R4, NP208, Dana 60/14 bolt, 4.56s, Detroits, 3" lift, 15-39.5x15 TSLs
    '97 Dodge 2500 4x4 CC LB Sport, Cummins 5 spd
     
  2. odee

    odee Registered Member

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    I think the difference is in the 3rd & 4th gear clutch packs I have a friend running one with a 350 in s10 blazer for about a year or so in adaily driver
     
  3. HarryH3

    HarryH3 1 ton status Author

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    I seem to recall reading that the V6 version 700R4's have fewer clutches. Something about an overrunning roller clutch being different seems to be coming to mind as well... But it's a foggy recollection of something I read a very long time ago! [​IMG]


    <font color=black>HarryH3 - '75 K5</font color=black>
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  4. BigTex

    BigTex 1/2 ton status

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    There was an article in one of the offroad mags about the difference. I can't remember what issue it was, but they basically said to stay away from the S-10 700s because of strength issues. They pretty muched trashed it.

    <font color=red>"PROCRASTINATE NOW!!!"</font color=red>

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  5. pcorssmit

    pcorssmit 1/2 ton status

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    Well, I picked it (and the 231 it was mated to) tonight. Got my t-case pulled out, so far it looks like the output shafts are the same.

    Pete

    '83 K5, 350 TBI (ex 6.2), 700R4, NP208, Dana 60/14 bolt, 4.56s, Detroits, 3" lift, 15-39.5x15 TSLs
    '97 Dodge 2500 4x4 CC LB Sport, Cummins 5 spd
     
  6. 84_Chevy_K10

    84_Chevy_K10 Banned

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    There isn't a difference.

    Tim
    '84 Chevy K10, lifted, loud, fast, and 3/4 ton axles
     
  7. pcorssmit

    pcorssmit 1/2 ton status

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    Well, got a chance to talk with a friend who works at a tranny shop over the weekend (damned interned connection is down again at home--thanks, Quest), and it sounds like it should work out fine, as long at the trans is in decent shape to begin with.

    Pete
     

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