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.

Cross member the same for auto and manual trans?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Eric M., Sep 5, 2005.

  1. Eric M.

    Eric M. 1/2 ton status

    Joined:
    Dec 10, 2001
    Posts:
    2,118
    Likes Received:
    0
    Location:
    Oakland, CA
    Here's what I'm thinking of getting. 1980 GMC C3500 with a 350 and 4 speed (granny low) trans. The trans. is in bad shape and since this will be a company truck (construction), I'd like to swap in a Turbo 400. Anyone know if the transmission crossmembers are the same?

    I'm not up on manual transmissions, what is the model # of the present unit in this truck?


    Thanks,

    Eric M.
     
  2. big83chevy4x4

    big83chevy4x4 3/4 ton status

    Joined:
    Mar 22, 2002
    Posts:
    6,587
    Likes Received:
    0
    Location:
    Sheridan, Michigan
    i believe the crossmembers are the same, you may have to move it in a different location.

    the tranny would be a sm465
     
  3. Eric M.

    Eric M. 1/2 ton status

    Joined:
    Dec 10, 2001
    Posts:
    2,118
    Likes Received:
    0
    Location:
    Oakland, CA
    Thanks.

    Are the sm465 desirable? Are they worth anything in "not working condition"? What does the "sm" stand for?

    Eric M.
     
  4. mechted

    mechted 1 ton status Premium Member

    Joined:
    Oct 19, 2003
    Posts:
    765
    Likes Received:
    2
    Location:
    Granbury, TX
    As with all things, it depends on how broken it is... a busted 2wd is probably not worth much to most people... but it depends
    most of the 2wds ive seen go for less than 75 in working condition... so... somewhere between $0 and there i would guess
     
  5. big83chevy4x4

    big83chevy4x4 3/4 ton status

    Joined:
    Mar 22, 2002
    Posts:
    6,587
    Likes Received:
    0
    Location:
    Sheridan, Michigan
    i feel that the sm465 is a good strong tranny. there are alot of them in both 2wd and 4wd as they came in chevy ford and dodge.

    the "SM" i think stands for saginaw muncie, but i could be wrong.

    ive seen them from $200 fully rebuilt to $50 in working condition.
     
  6. Eric M.

    Eric M. 1/2 ton status

    Joined:
    Dec 10, 2001
    Posts:
    2,118
    Likes Received:
    0
    Location:
    Oakland, CA
    Thanks guys.

    Eric M.
     

Share This Page