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205 question

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Impex, Jul 25, 2000.

  1. Impex

    Impex 1/2 ton status

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    Ok i had my sm465 and 205 resealed. The tranny shop said that where the rear driveshaft comes out (the yoke i think) had a groove rubbed in to it due to the old and hard seal. Well since they put the new seals on they said it might or might leak because there is a doulbe seal right there and it could maybe stop it from leaking. Well it didn't so my question is do i just need to replace the rear yoke on the 205? Is this what would be grooved and does it make sense or are they giving me BS and is there a double seal back there?
    Thanks!
     
  2. Blazer1970

    Blazer1970 1/2 ton status

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    Yes, replace the yoke. I replaced the one on my 205 when I rebuilt it. There is a Spicer part # that is a lot cheaper than the dealer, if they even have it any more.

    Tim

    1970 Blazer CST 4X4 350 SM465 NP205
    1987 Suburban 4X4 350
    1988 Chevy Pickup 4X4 350
     
  3. Impex

    Impex 1/2 ton status

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    Where could i find the Spicer part?
     
  4. blazer72

    blazer72 1/2 ton status

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    A second thought you could use a ready sleave! on goes on the yoke you have now, its a realy thin coller that presses over the seal area of the yoke, I have one on 3 of my yokes, and one on the balancer. cost is about 10 to 20 dollers per it takes a bit to get them on but they do work well. Plus if they get a grove in them you take them off and replace them!

    I understand the jeep thing I drive a BLAZER!!

    Ken
     
  5. Blazer1970

    Blazer1970 1/2 ton status

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    Call the guys at nationwide parts for the Spicer yoke.
    http://www.nationwideparts.com

    You can also use a speedy sleeve, I did that on my front output. I actually replaced the rear one because it had an ear cracked off, in addition to the groove. As I recall, the new yoke was not that x-pensive.

    Tim

    1970 Blazer CST 4X4 350 SM465 NP205
    1987 Suburban 4X4 350
    1988 Chevy Pickup 4X4 350
     
  6. realsquash

    realsquash 1/2 ton status

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  7. Impex

    Impex 1/2 ton status

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    What does a fixed yoke mean and do i need or should i do one on my 205?
     
  8. Steve_87K5

    Steve_87K5 1/2 ton status

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    A new yoke is about $45-65. Pays to know your part number and
    shop around. Here are some numbers, these are for a fixed end yoke type 205:
    1350 series (3/4-1T) Spicer p/n Spicer 3-4-6211 or GM 6259081.
    The smaller 1/2T end yoke is GM 6259080 about $44 trade. I don't have the 1/2T
    Spicer p/n in front of me. If there is a groove in there, there is a good chance the
    splines are sloppy and it would be nice to tighten up the driveline a bit with a new yoke.
    The sleeves work also.


    SteveB
     
  9. Steve_87K5

    Steve_87K5 1/2 ton status

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    Double seal...yes, in the sense that the 4speed is sealed off from the 205 and the
    tail of the 205 is sealed. The 4speed seal rides on the coupler sleeve. If the oil
    level in the 205 is too high it will leak. This happens if trans oil flows into the
    205 and raises the level. Just pull your upper 205 oil plug and see what happens.
    It should just drool, not gush.

    SteveB
     
  10. Steve_87K5

    Steve_87K5 1/2 ton status

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    Spicer Part can be found at a local drive train shop or from the drivetrain advertisers in the 4x4 magazines.
    I found good prices at 4x Heaven 1-800-800-1679. Ask for Rich or Vince. Very helpful and polite if you
    need help figuring out just what you want in a transfercase part.

    SteveB
     

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