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How to Id a 205 and 208 t-case

Discussion in 'The Garage' started by odoa3, Jul 27, 2004.

  1. odoa3

    odoa3 1/2 ton status

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    I am trying to find pic's of a 205 and 208 t-case. Anyone know of any sites that have pic's or can tell you what to look for?
    Thanks for the help.
     
  2. 85mudblazin

    85mudblazin 1/2 ton status

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    Most t-cases have the # on the rear of the case on a little circle piece of metal and it says what it is right in the middle of that piece.
     
  3. MTBLAZER89

    MTBLAZER89 3/4 ton status Premium Member GMOTM Winner

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    208 and 241's are aluminum , and the 205 is cast and looks like

    [​IMG]
     
  4. odoa3

    odoa3 1/2 ton status

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    Best guess- what would a 75 K5 have for a transfer case? It is an hour away so I can't really go look. I found some info. that says I have a 203- but I can put it in 2wd. It has Warn Premium Hubs in it so perhaps I am just unlocking the front end? I would have sworn it has a 208- did those ever come in K5s?
     
  5. big83chevy4x4

    big83chevy4x4 3/4 ton status

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    most of the time if it has a stick it has a 205, an auto has a 203. the 208 didn't come until 81.
     
  6. cybrfire

    cybrfire 1 ton status Vendor GMOTM Winner

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    208's did come in k5's but not till much later. More than likely you have a 203 in that year. Another good way to identify a 205 is that three bolt round cover right in the middle back side on the picture above.
     
  7. odoa3

    odoa3 1/2 ton status

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    So if I have a NP203- how hard would it be to put a 205 in? Just a longer drive shafts?
     
  8. diesel4me

    diesel4me 1 ton status Premium Member

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    When I put a 205 in my 74 K20 plow truck in place of the 203,the rear shaft fit ok(except the transfer case had a half ton U-joint flange,my 3/4 ton u joint was larger,had to get another rear yoke)but the front shaft was way too long--I searched the boneyards and came up with a shaft from a 69 K10 that was very short,fit perfect--or I could have cut the old one down and welded the yoke back on,something I now have to do,since that short shaft wasnt the greatest shape,the spines are real sloppy.I have a brand new shaft that is longer waiting to go in after its shortened,but I have been debating whether to part out the truck,because its so rotted--decisions,decisions-- /forums/images/graemlins/tongue.gif
     
  9. marv_springer

    marv_springer 1/2 ton status

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    208 - upside down... /forums/images/graemlins/screwy.gif
    [​IMG]
    tag
    [​IMG]
     
  10. smprider112

    smprider112 1/2 ton status

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    the EASIEST way to tell....is to look at the shift pattern
    208-2hi-4hi-nuetral-4low
    203-4hilock-4hi-nuetral-4low-4lowlock
    205-4low-nutral-2hi-4hi
    /forums/images/graemlins/thumb.gif /forums/images/graemlins/thumb.gif
     
  11. mo

    mo 1/2 ton status

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