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Is it a 205 or what?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by talldogg, Oct 18, 2000.

  1. talldogg

    talldogg 1/2 ton status

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    I stumbled across a potential find yesterday. I was at one of the local self serve wrecking yards and I came across a T-case lying underneath a Blazer. The tag on it was missing and so was the shifter so I can't ID it that way, but it appears to be a 205. It has the speedo cable fitting on the right side of the rear driveshaft output housing and to the right of the fill plug there's a circle that's held on by three bolts. As far as I know those are characteristics of a 205, but I'd like to be sure before I spend $100 to buy the thing. Is there any other way to ID it? If it's still there by Saturday, I'll open it up and hopefully there won't be a chain in it! I also got the casting number of it. Is there a source online (preferrably) with a list of T-case casting numerbs? Here it is by the way c-99404. Thanks, I appreciate it.[​IMG]

    It's not what you buy, it's what you build!
     
  2. ken

    ken 1/2 ton status

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    If it does not have a tailhousing that sticks out of the main body of the case by about 10", then itsa 205. Better give me the address of the wrecker and I'll go check it out for you! I promise not to buy it!! (Hehehehe)

    ken
     
  3. laketex

    laketex 3/4 ton status

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    If it has that inspection plate that's about the size of a silver dollar and held on by three bolts, it's your 205.

    [​IMG][​IMG]
    Durant, Ok
    '79 Blaze- 350/350/203, 14B w/detroit, D44, 4.11s, 4" susp, 36" TSL
     
  4. '73 K5

    '73 K5 1/2 ton status

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    Yep, Laketex is right. Thats the easiest way to identify one.

    '73 K5
    Chevy good...Ford bad
     
  5. Sparky

    Sparky 1/2 ton status

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    Check the year of the blazer it was sitting under. That ought to give you a good idea. I know the yards around here put make modle and year on the window in some weird lettering. Maybee that will help.

    Sparky

    78 K-5
     
  6. talldogg

    talldogg 1/2 ton status

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    I tried to figure out what year it was and it appeared to be from the late '70s, so it is possbily a 205. And with what the other guys are saying and what I know, I'm pretty sure it is a 205. I won't have a chance to examine it today, but I should be able to stop by and hide it. I actually should have done that yesterday as it might not be there today. I forgot to mention the tailgate. The truck is an older rig, but I guess the last owner had replaced the tailgate with a newer one, COMPLETELY rust free. I didn't have any tools with me, so I went down the street and I bought an adjustable wrench for $5, and I pulled it. It cost me $45!!! I'm going to spray the inside with rubberized undercoat to keep it nice and rust free.
    BTW, what should I look for when I examine the 205 to determine it's condition? Thanks.


    It's not what you buy, it's what you build!
     
  7. ken

    ken 1/2 ton status

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    This 205 you're looking at, what tranny was it behind? If it was a late 70s 4x4 then it was behind a 4 speed and will not work behind an auto trans. Do you have an auto trans? Consider that when you buy a 205, I personally would not buy one that didn't fit my application, as adapters are expensive.

    ken
     
  8. talldogg

    talldogg 1/2 ton status

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    The truth is I don't know if it was stick or auto. The tranny was missing, but I can check the floor pan and steering column to see where the shifter was, that will determine what tranny was in there. I do plan on running an automatic, so I'm really glad you pointed that out. I do want to avoid an adapter. I need more info to see if it'll fit with my plans, otherwise I won't buy it. What else should I consider? Thanks.

    It's not what you buy, it's what you build!
     
  9. keith

    keith 1/2 ton status

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    The out put shaft on the tranny side is the way to tell what tranny it is. Course 10 spline is the 4 speed and a fine 32 is the Th350. The TH400 aslo is fine but I don't remember the the number
     
  10. talldogg

    talldogg 1/2 ton status

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    I did count the spline and it's a 27, so I guess it was an automatic, which is good in my case, 'cause that's what I want. I apprecaite ALL input, so keep it coming! I'm doing some learning here. [​IMG]

    It's not what you buy, it's what you build!
     

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