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wich x-fer case do I have

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by madups311, Dec 2, 2001.

  1. madups311

    madups311 Registered Member

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    Hey, my trasfer case does not function properly and I either need to adjust it fix it or buy a new one, Well I have a 79 jimmy automatic Who can tell me what transfer case I have???
    Thanks

    1979 Jimmy 4" skyjacker, add-a-leaf, 35" M/T's, Body Lift purchased.
    2001 Pathfinder LE Mile Marker Winch
     
  2. Blazer_Boy

    Blazer_Boy 1/2 ton status

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    New Process 203 transfer case, chain driven, cast iron, full time 4-wheel drive, with 2.01:1 low range. What seems to be wrong with it?
     
  3. FatBoyBlazer

    FatBoyBlazer 1/2 ton status

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    it could be a 203 or 205 but i am preatty sur that it is a 203, is it full time 4 wheel drive? if it is then it is a np203

    hola
     
  4. Wheels

    Wheels 1/2 ton status

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    79 was the last year that they used a NP203 (aka boat anchor). They went to a NP205 in 1980 with a slip output. What shift patter is on the knob?

    <P ID="edit"><FONT class="small">Edited by Wheels on 12/02/01 09:39 PM.</FONT></P>
     
  5. madups311

    madups311 Registered Member

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    Well the 4WD only engages if I push the shifter as far forward as possible and keep full pressure on it otherwise it won't stay in 4WD, that's what makes me think that there is a problem in the linkage

    1979 Jimmy 4" skyjacker, add-a-leaf, 35" M/T's, Body Lift purchased.
    2001 Pathfinder LE Mile Marker Winch
     
  6. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    If it wasn't for the 203 we couldn't build doublers...plus they are actually quite strong. Their one big drawback is weight.

    Rene

    <font color=green>Dyslexics of the world...UNTIE!</font color=green>
    <a target="_blank" href=http://coloradok5.com/gallery/project_T2> tRusty pics...</a>
     
  7. Blazer_Boy

    Blazer_Boy 1/2 ton status

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    I dunno, if this will help, but have at it!

    "I ain't nobody, dork."
    <a target="_blank" href=http://www.geocities.com/bigkern76>http://www.geocities.com/bigkern76</a>
     
  8. Wheels

    Wheels 1/2 ton status

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    More than likely the holes are worn out where the linkage fits into, or the nuts on the levers coming out of the t-case are loose. You can adjust the linkage. Chiltons manual has a pretty good breakdown on this. And yes the range box on the 203 is the only good part on it. Don't get me wrong, the 203 is a little under rated but if you ever have the chain let loose on one, it's a long walk home, been there, done that, bought the t-shirt.
     
  9. Rebel88

    Rebel88 1/2 ton status

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    my buddy that has a 78 jimmy that did the same thing...let me tell you how fun it was to be the passenger in the mud and have to hold on with two hands and keep your foot on the t-case shifter so itll stay in 4wd...fixed it just by adjusting the linkage...his only started after the body lift...

    Later

    Have you driven OVER a Ford lately?
     
  10. 84_Chevy_K10

    84_Chevy_K10 Banned

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    After 1980, no K5 I know of would have a slip yoke 205. More than likely, they'd use the 208 or 241 in later years, instead.

    Only thing I've seen a slip yoke 205 come from was 3/4 ton 4wd '80s trucks with manual trannies or TH 400s. I have only seen a few K30s in my whole life, but I'd assume that they had them too after '80.

    Tim
    '84 Chevy K10, lifted, loud, fast, and 3/4 ton axles
     
  11. mike reeh

    mike reeh 1/2 ton status

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    dont talk smack about the np203 its a great case. a chain is a normal wear item and most of them last 250K+ miles even under extreme abuse. Nobody ever thinks to maintain the t-case. maybe add oil once in a while and thats it. So you get what you had comin' if the chain breaks. would you take a 250K mile motor out on hard offroading trips? not without a new timing chain i hope &lt;/rant&gt;

    Ill take a np203 over a 205 slipyoke ANYday

    mike
     
  12. michaelm

    michaelm 1/2 ton status

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    hey
    good link
    i think i have seen that somewhere before
     
  13. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    Man your album is getting a lot of miles on it Michael![​IMG] You should get a royalty or something...

    Rene

    <font color=green>Dyslexics of the world...UNTIE!</font color=green>
    <a target="_blank" href=http://coloradok5.com/gallery/project_T2> tRusty pics...</a>
     

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