Dismiss Notice

Welcome To CK5!

Registering is free and easy! Hope to see you on the forums soon.

Score a FREE t-shirt and membership sticker when you sign up for a Premium Membership and choose the recurring plan.

TH400/NP205 ????'s

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by magnum4x4, Oct 3, 2004.

  1. magnum4x4

    magnum4x4 Registered Member

    Joined:
    Jan 4, 2004
    Posts:
    97
    Likes Received:
    0
    Location:
    Baltimore, MD
    TH400/NP205 ????\'s

    I was wondering the difference between the late 70's 400/205 setup and the late 80's 400/205 combo. Are they the same except the crossmember. Can I put a late 80's combo in my 73 K5 with minor mods. Are the output shafts and adapters the same. Can a late 80's 205 go on a late 70's 400? Thanks for your help.
     
  2. boz42

    boz42 1/2 ton status GMOTM Winner

    Joined:
    Jun 3, 2003
    Posts:
    3,181
    Likes Received:
    0
    Location:
    Hopewell, Tn 38058
    Re: TH400/NP205 ????\'s

    can't answer all your questions, but here is what i know.

    late 70's has an hour glass style adapter on the 205 side & a shorter tail shaft.

    late 80's uses a longer tail shaft in the t-400 & the 205 & adapter have a round bolt pattern.
     
  3. 84_Chevy_K10

    84_Chevy_K10 Banned

    Joined:
    May 30, 2001
    Posts:
    17,669
    Likes Received:
    0
    Location:
    IL, USA
    Re: TH400/NP205 ????\'s

    [ QUOTE ]
    Are they the same except the crossmember(?)

    [/ QUOTE ]

    No

    [ QUOTE ]
    Can I put a late 80's combo in my 73 K5 with minor mods(?)

    [/ QUOTE ]

    Yes.

    [ QUOTE ]
    Are the output shafts and adapters the same.

    [/ QUOTE ]

    No, the output shaft on the newer one is longer and the bolt pattern on the front of the transfer case is different. That is why the crossmember is different.

    [ QUOTE ]
    Can a late 80's 205 go on a late 70's 400? Thanks for your help.

    [/ QUOTE ]

    Yes, but you'll need to do two things:

    1. Change the output shaft in the TH 400
    2. Use the newer adapter.

    This information is all available on ORD's website at www.offroaddesign.com
     

Share This Page