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Does my K30 have a 208?

Discussion in 'The Garage' started by NITRO, Apr 8, 2003.

  1. NITRO

    NITRO 1/2 ton status

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    i thought that it would have a 205, but it has a 454/th400/ and what appears to b a shiny x-case like aluminum. it is an 84, but i thought they still used the 205's in that year. any ideas? it has 20,000 miles on a rebuilt driveline and that thing has done fine with detroits front and rear. i figured if it was a 208, it would b in pieces from that torque/stress put on it.
    /forums/images/graemlins/confused.gif
    NITRO
     
  2. nvrenuf

    nvrenuf NONE shall pass! Premium Member

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    It is most likely a 208, from the early 80's on most of the 205's would have been in crew cabs only. Probably 90% of the CUCV's have a 208.
     
  3. yellowK20

    yellowK20 Well Lubricated Premium Member GMOTM Winner

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    every 4x4 crew cab, 3/4 and 1 ton I've seen have np205's I work around those cucv k-30's on a daily basis I'm sure that all the ones we have (about 15) all have Np 205's the cucv blazers have np 208's his truck should have a fixed yoke 205 somebody kiped his t-case if it is a 208 ....... I could be wrong but I just got an 87 K-30 with a sm465 and it has a fixed yoke 205 and my mom has an 86 k30 with a th400 and a Np 205 that she bought new /forums/images/graemlins/truck.gif
     
  4. hoosierk3500

    hoosierk3500 Registered Member

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    I agree with the others,it should have a 205.My 84 has a th400,slip yoke 205.O'well 208's aren't that bad,better low range anyhow.Jason 84k3500 /forums/images/graemlins/truck.gif85k2500 /forums/images/graemlins/burb.gif
     
  5. NITRO

    NITRO 1/2 ton status

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    well, it is a slip yoke. mayb it is a SY 205. i dont know. i wont have it for another 11 days. when i get it, i will look into it. thanks for the replies

    NITRO
     
  6. HarryH3

    HarryH3 1 ton status Author

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    My 205 came out of a 1980 GMC 1-ton. The case is cast iron, but it has the aluminum slip yoke housing on the back... /forums/images/graemlins/frown.gif Take a closer look once you have the truck and let us know what you find. /forums/images/graemlins/cool.gif
     
  7. captain chaos

    captain chaos 1/2 ton status

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    does it have a shifter (in the cab) like a 208?
    if it does it's a 208, as 205's don't have that type of shifter.

    dave
     
  8. jekbrown

    jekbrown I am CK5 Premium Member GMOTM Winner Author

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    a pic would help a lot. /forums/images/graemlins/frown.gif if it is a 208, swap it out asap. Everyone has their own opinions... but for me, even if the 208 had a 6:1 gear ratio I would have swapped in a case without a slip yoke. Slip yokes suck ass, no two ways about it.

    j
     
  9. Leadfoot

    Leadfoot 1/2 ton status Premium Member

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    It should be a 205, but considering the age of the vehicle and unknown history, it COULD have been swapped out.......
     
  10. NITRO

    NITRO 1/2 ton status

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    it has a 208 shifter /forums/images/graemlins/frown.gif not what i wanted to see behind that engine and powering that drivetrain. o well, guess i will live till i pay the rest off to the rents and get a chance to blow some money on it

    NITRO
     
  11. ben427

    ben427 1/2 ton status

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    Its not as bad a t case as it sounds. the only real downside is the slip in the back. It has a good low range(2.61:1) and is fairly durable for what it is.
     
  12. NITRO

    NITRO 1/2 ton status

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    i had one in the 84 K5 that i sold yesterday with a Sm465....im gonna miss that 4 speed. at least it has a th400 and 454. i hope that my th350 in my K5 can hold up to the th350 for a lil while longer too. its done pretty good so far

    NITRO
     
  13. jekbrown

    jekbrown I am CK5 Premium Member GMOTM Winner Author

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    dont get me wrong, i dont have a problem with the 208 with respect to its aluminum case or its chain drive mechanism, just the slip yoke. Aluminum case is ok... rocks will never hit it if you have a skid plate. Chain drive is ok too. can they stretch eventually? sure i guess, but parts/seals/bearings etc in gear driven cases go bad too so its not like the 208 is the only case that needs to be rebuilt. That slip yoke tho... no defending that POS of a "design"...

    j
     

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