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.

th350 to th400

Discussion in 'The Garage' started by mtnman210, May 10, 2005.

  1. mtnman210

    mtnman210 1/2 ton status

    Joined:
    May 30, 2003
    Posts:
    3,880
    Likes Received:
    0
    Location:
    Northridge, Ca
    I'm going to switch the tranny in my blazer from a 350 to a 400. It's a 77k5 with a sb350 and a 203 transfer-case. Anybody who has done this know what kind of problems I'm going to run into doing the swap.
     
  2. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

    Joined:
    Dec 14, 2001
    Posts:
    22,063
    Likes Received:
    70
    Location:
    Pleasanton, CA.
    You are going to need the very rare TH400 version 203 with adapter. Also you will be doing driveline work as well.
     
  3. mtnman210

    mtnman210 1/2 ton status

    Joined:
    May 30, 2003
    Posts:
    3,880
    Likes Received:
    0
    Location:
    Northridge, Ca
    thanks...thats kinda what i've been hearing.
     
  4. muscle

    muscle 1/2 ton status

    Joined:
    May 28, 2000
    Posts:
    408
    Likes Received:
    0
    Location:
    Show Low, AZ
    i just completed a th350/208 to th400/208 conversion. lots ive learned with adapters, crossmembers, kickdown switches. still need to get drivelines redone but all in all i do believe its worth it. pm me if you need more info
     
  5. mtnman210

    mtnman210 1/2 ton status

    Joined:
    May 30, 2003
    Posts:
    3,880
    Likes Received:
    0
    Location:
    Northridge, Ca
    awesome thanks I'll probably be picking your brain a little later
     

Share This Page