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Any Certain Year for 205 T-Case

Discussion in 'The Garage' started by crazyhole812, Apr 29, 2006.

  1. crazyhole812

    crazyhole812 1/2 ton status

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    i'm going to call a local 4x4 yard today. i was wondering if there was a certain year of 205 i should look for. i just figure before i buy new driveshafts i should get a 205 and put in the low gears, and get rid of my 208. seem smart? or should i just keep the 208? i am planning on running 42's and was trying to avoid running 5.38 gears.
     
  2. b454rat

    b454rat 1/2 ton status Premium Member

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    I can tell you what year to avoid, any 1980 model. Those years had the slip yoke like your 208. Some 80s model 1 tons had them too, so keep an eye out for them. Not sure if you can take a 205 with adaptor and bolt it to your trans, they had a bunch of different configurations for tailshaft lengths. I'm sorta going thru this with a 400/205...
     
  3. thatK30guy

    thatK30guy 1 ton status Premium Member

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    I wouldn't just rule out "any" year model of 205 especially if it has the slip yoke. The slip yoke housing can be easily removed and replaced with a fixed yoke after one has been found. A few vendors on this site sell some for around $100 or so.
    There is no specific year of any 205 to avoid. The thing I would watch for are the adaptors. I'm not fond of the earlier adaptors that were mated to the 350 turbo trannys as those used ball bearings inside them. The newer 205/350 adaptors have seals inside them instead. Read/heard somewhere that the bearing type adaptors are weaker than the seal type. Don't know if its something to do with the added stress from the torque of the rotating shafts, coupler sleeve and the material of what the adaptor is made from that causes them to crack.
    Other things to watch out for on the older 205's are the front output shafts having 10 splines instead of 30 like newer ones do. If you wanted to run larger u-joint yokes, the 10 spline will allow that whereas the 30 spline won't. A Ford 205 front output shaft can be swapped in as it has 32 splines and therefore you can install joints up to 1350 series.
     
  4. crazyhole812

    crazyhole812 1/2 ton status

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    thanks guys. oh and i do have the 465 trans. so i would want the 10 spline or a 32 spline off a Furd?
     
  5. ProJunkRacing

    ProJunkRacing 1/2 ton status

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    your trans will need the 10 spline for the coupler

    here is a pic of the adapter you need also make sure you have the right seals in but wait if you have a 208 don't you have a lower gear than a 205 or is that a 241? hmm cant remember

    T Case 2.JPG
     
  6. thatK30guy

    thatK30guy 1 ton status Premium Member

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    Is your 465 a 10 spline output shaft? If so, then you need the common and easy to find 10 spline 205.
    Whether you want the 10 or 32 spline front output shaft will determine what you want to do with your rig. If you are just doing a daily driver/mild offroader, leave the front output shaft alone. If you are building an all out offroader, find the Ford shaft and install that.

    If your 465 output shaft has 32 splines, you need to find any 205 out of a K30 from '85 up to '91.

    The 10 spline 465's will be easier to find the 205's as they go way back down to the 60's.
     
  7. fatbob

    fatbob 1/2 ton status

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    quote" i am planning on running 42's and was trying to avoid running 5.38 gears."

    The 205 will not help you with this. It only has a 2 to 1 low range, while the 208 has 2.61 to 1 low range. I believe someone has started making 3 to 1 gears for the 205, but it comes with a new case and the price was over $1000 I think. The 205 just excels in strenght, but the 208 does have better gearing..
    Good luck
     
  8. R77K10

    R77K10 Banned

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    a 208 is what i want to put in place of my 203, once i find one and a th350 adapter and crossmember for one for my 77

    we need to know what year 465 tranny/truck you have

    spline count even better

    they changed the spline count on the 465 by 83

    so,


    good lcuk
     
  9. crazyhole812

    crazyhole812 1/2 ton status

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    thanks guys. those low gears for the 205 is what i was thinking of but i'd rather not pay over 1000 bucks for it. i guess i'll stick with the 208. is the slip yoke a problem? i thought i read they could crack or something. my truck is an 87 3/4 ton. it will be offroad only. i have a 383 stroker. i will be running 42's
     
  10. ProJunkRacing

    ProJunkRacing 1/2 ton status

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    the same company that makes the lomax 205 the 3 to 1 case previously mentioned i am almost positive has a slip yoke elminator kit you can buy to remover that and have a fixed yoke
     
  11. crazyhole812

    crazyhole812 1/2 ton status

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    is that thing legit? once again i only read this, but i thought some people thought it was a crappy way of having a fixed yoke?
     
  12. MNorby

    MNorby 3/4 ton status Premium Member GMOTM Winner

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    find a 241. it will bolt right in if from behind the same tranny and you can buy a sye kit. Otherwise use dodge parts to sye your 208
     
  13. crazyhole812

    crazyhole812 1/2 ton status

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    what dodge parts or what year? just need the rear output cap? thanks man. by the way norby , got any pics you could e mail me of your cage?
     
  14. MNorby

    MNorby 3/4 ton status Premium Member GMOTM Winner

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    if i remember right there is some machineing needed to be done too. Do a search for SYE 208
     
  15. crazyhole812

    crazyhole812 1/2 ton status

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  16. jekbrown

    jekbrown I am CK5 Premium Member GMOTM Winner Author

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    Chevy never used a fixed yoke 208... Dodge and Ford did. Not sure why Ford stuff couldn't be used, but apparently it won't work. Not sure what year Dodge stuff either.. but if you look under a Dodge and see a 208 with a fixed rear yoke, I think you're fine. Parts oughta work for ya.

    front outputs are always fixed... so yeah, rear output stuff is all you have to work about.

    j
     
  17. NorthWestFab

    NorthWestFab 1/2 ton status

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    If your NP208 was hooked to the SM465, it will be a 32 spline output shaft.

    The only wrecking yard combination that will work for you is to find a NP205 from 1985 and later, mated to a SM465. You will also need the transmission adaptor.

    We offer complete rebuilt 3:1 LoMAX NP205 transfer cases, and we will have somthing to replace your NP208 for the added strength and low range.



    -Kyle
    NWF.
     
  18. 85gmcOD

    85gmcOD Registered Member

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    hijack

    what do u mean.... something to replace ur 208.... u just mean puttin the 205 in with the 3 to 1 reduction.. and is there anyway to make that 205... and how much . i have a np 208 and was just about to do shafts and thought about a t case becaus ei dont wanna go out and spend all this money on a shaft that wont work at all if i change the t case.. i eventually wanna get a big block and 44's so all mods are pointed to that direction. thanks
     

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