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t-cases and flips

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by OREGONK5, May 8, 2000.

  1. OREGONK5

    OREGONK5 Newbie

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    i was just wondering how to tell which t-case i have or how to tell the differance between a 203 and a 205. i have a 74 k5 with a 350/350t, it has hub locks but i don't know those were added later or not, their ruff country hub locks so i don't think their factory. and my other question, which i know you've covered a hundred times is how do you do a rear shackle flip and if someone could attach a picture of a completed one it would be really helpful. thanks guys. i love this place!
     
  2. Goose

    Goose 1/2 ton status

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    The easy way is to look at your shift pattern. If you have 4lock, 4high, N, 4low, 4lock; then NP203. If 4high, 2high, N 4low, then NP205. Haven't done the flip thing, so can't help there.

    Mud is just thick water, or is it that water is just thin mud?
     
  3. BillR

    BillR 1/2 ton status

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    Mr. Goose, ol buddy, the pattern is: LO-LOC, LO, N, HI, HI-LOC.
    I'd LOVE a 205, but this is what I have in mine...[​IMG]

    Blazin' in Flagstaff
     
  4. DangerB

    DangerB 1/2 ton status

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    check it.

    DangerBrett[​IMG]
    <font color=blue>obviously a smartass </font color=blue>
     
  5. dremu

    dremu Officious Thread Derailer Premium Member

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    From the factory a '74 with a TH350 woulda had the NP203. Unless somebody swapped in the 205 -- not likely, they woulda told you that when they sold it to ya -- it's an NP203.

    Pix to verify on

    Chucks Chevy Page

    -- A

    '74 K5 Blazer "Tank Grrl"
    '77 Chalet sans Blazer
    and more to come...
     
  6. Goose

    Goose 1/2 ton status

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    Dang!! That's the second time I got the shift pattern wrong on the 203. Maybe next time I will actualy look it up. Can you tell I have the 205? Thanks for the clarification.

    Mud is just thick water, or is it that water is just thin mud?
     
  7. Emmettology 101

    Emmettology 101 3/4 ton status

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    Without knowing the shift pattern you can also tell from the outside.
    The 203 is a lot longer than the 205. On the back of the 205(facing the gastank) there is a small circle cover with (3) bolts in it. The 203 does not have this! And the 203 is actually two boxes connected.

    Hope this helps.

    Mike
    82 GMC Jimmy "Emmett"
    IN TOO DEEP Off-Road Club
     

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