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How to find out what tranny I have

Discussion in 'The Garage' started by la_blazer82, Aug 10, 2004.

  1. la_blazer82

    la_blazer82 1/2 ton status

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    The identification tags on both the driver's door jamb, and the glove compartment have been removed by one of the prior owners. Where can I look to find out what tranny I have. What tranny do I want to have?

    BTW -- I have an 82 K5 Blazer (Silverado) 1/2 ton; 350 5.7L; I think I have the NP205 t-case.
     
  2. smokkey1

    smokkey1 1/2 ton status

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    3 speed or 4 speed?
    if is it's an 3 speed it's an th350 and if it's an 4 speed it's an 700r4
     
  3. RustBuket

    RustBuket 1/2 ton status

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    A square tranny oil pan also indentifies a TH350.
     
  4. la_blazer82

    la_blazer82 1/2 ton status

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    [ QUOTE ]
    3 speed or 4 speed?
    if is it's an 3 speed it's an th350 and if it's an 4 speed it's an 700r4

    [/ QUOTE ]

    It's a four speed auto tranny w/Overdrive. Does this change it from being a 700r4?

    As for the t-case, I have to get under to take a look at the t-case, but the selector (in descending order) is 2Hi, 4Hi, Neutral, 4Lo.
     
  5. SF87K5

    SF87K5 1/2 ton status

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    its a th700 and a np 208 tcase.
     
  6. k20

    k20 3/4 ton status

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    one shaped like illinois (yeh thats what i think it is) is a th400, a square is 700r4, and a square w/ a corner cut off is a th350.
     
  7. 84gmcjimmy

    84gmcjimmy 1 ton status

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    you don't have a np205, you have a np208. Most half tons came with np205, until someone before you swapped it in.
    But you have a 208 from what you described.
     
  8. big83chevy4x4

    big83chevy4x4 3/4 ton status

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    700r4 and np208 /forums/images/graemlins/waytogo.gif
     
  9. ugly_blazer

    ugly_blazer 1/2 ton status

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    [ QUOTE ]
    one shaped like illinois (yeh thats what i think it is) is a th400, a square is 700r4, and a square w/ a corner cut off is a th350.

    [/ QUOTE ]


    Hey, don't drag us folks from Illinois into this! /forums/images/graemlins/histerical.gif

    Actually, I have heard people refer to the 400 pan as resembling Texas.
     
  10. Nonesuch

    Nonesuch 1/2 ton status

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    Yeah Texas with the southern tip cut off and El Paso disappeared... Not like that would be a bad thing /forums/images/graemlins/histerical.gif
     
  11. smprider112

    smprider112 1/2 ton status

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    [ QUOTE ]
    you don't have a np205, you have a np208. Most half tons came with np205, until someone before you swapped it in.
    But you have a 208 from what you described.

    [/ QUOTE ]

    From 81 and on 208's where standard...so someone didnt swap it in...its how it came from the factory /forums/images/graemlins/waytogo.gif
     
  12. la_blazer82

    la_blazer82 1/2 ton status

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    Checked the factory specs link for 82s, and I have the optional TH700-R4 tranny, and the NP208 t-case (2.61:1 low range), which was standard. Thanks
     

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