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.

Tranny Crossmember questions

Discussion in '1969-1972 K5 Blazer | Truck | Suburban' started by Rusty68, Apr 3, 2003.

  1. Rusty68

    Rusty68 1/2 ton status

    Joined:
    Jan 22, 2003
    Posts:
    116
    Likes Received:
    0
    Location:
    Elko, Nevada
    On my other 68 project I installed a th400/205 set-up. The 4x4 frame I bought did not come with a tranny crossmember so I slid one from a 77 Jimmy under it. It looked like a good fit and it bolted up fine with the factory holes in the frame. But I had to move it like 3 inches back to fit the 400 trans. Anyways, I am wondering if the first generation c/m were different then the 73- up style. Mostly because my transfer case is about 1/4 inch from smacking the floor of the cab. I thought I could beat this by putting in like 1" inch body lift if I have to. Thanks for any pointers.
     
  2. bouncytruck

    bouncytruck 1/2 ton status

    Joined:
    Oct 11, 2001
    Posts:
    858
    Likes Received:
    0
    Location:
    Bothell, WA
    Did your '77 have a 205 or a 203?
     
  3. Rusty68

    Rusty68 1/2 ton status

    Joined:
    Jan 22, 2003
    Posts:
    116
    Likes Received:
    0
    Location:
    Elko, Nevada
    a 203 and a th350, hmm didnt know there was a difference
     
  4. '72brett

    '72brett 1/2 ton status

    Joined:
    Dec 3, 2002
    Posts:
    166
    Likes Received:
    0
    Location:
    northwest Iowa
    yes, big difference... a th350 in a tranny, and a 203 in a transfer case. I think what u meant to say was you didnt know there was a difference from a 205 to a 203. The 205's have lockout hubs, and the 203 is all-time 4X4. Not sure what the dimensions are different, but you sure wouldn't want a 203 in place of a 205.
     
  5. Rusty68

    Rusty68 1/2 ton status

    Joined:
    Jan 22, 2003
    Posts:
    116
    Likes Received:
    0
    Location:
    Elko, Nevada
    Yes I did know the difference between the cases. I was saying that I didnt know there was a difference between the 203 and the 205 crossmembers. When I was talking about the th350 trans I was just saying that is what was attached to the 203 when I pulled the crossmember in case in mattered. The crossmember located the tranny/case centered in the frame so no problem there. I am just concered that the case is so close to the bottom of the cab. So if there was a height difference I should know about between the 1'st and 2'nd generation. If there isnt, then I will just add a 1/4 inch shim to drop the case and add a small body lift to clear it up top. Ah, the joys of trying to install somthing that was never there in the first place:)
     
  6. '72brett

    '72brett 1/2 ton status

    Joined:
    Dec 3, 2002
    Posts:
    166
    Likes Received:
    0
    Location:
    northwest Iowa
    Oh, OK, please forgive me /forums/images/graemlins/blush.gif I see what you are saying now, and I have no idea on what the difference would be.
     
  7. Anthony72K5

    Anthony72K5 Registered Member

    Joined:
    Mar 17, 2003
    Posts:
    20
    Likes Received:
    0
    A 203 is much longer than a 205 I think.

    My '72 doesn't have a tranny crossmember, although I have no idea if this is how it left the factory or not.
     
  8. Rusty68

    Rusty68 1/2 ton status

    Joined:
    Jan 22, 2003
    Posts:
    116
    Likes Received:
    0
    Location:
    Elko, Nevada
    The crossmember is not bolted to the tranny itself, but to the adapter inbetween the 2 cases. I think the setup I have now is going to work.
     

Share This Page