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.

4l60e & 205t-case?

Discussion in 'The Garage' started by bugspray, May 2, 2004.

  1. bugspray

    bugspray 1/2 ton status

    Joined:
    Jan 13, 2004
    Posts:
    110
    Likes Received:
    0
    Location:
    Phx, Az
    Does anyone know if the 4l60e tranny will bolt up with my 205 t case? Will I need any adapters? I currently have a turbo 350 tranny, and I know it's due for attention soon. I have the computer and everything for my vortec, the engine came out of a 97 Yukon. The tranny came out of a 98 4x4 Yukon.
     
  2. dremu

    dremu Officious Thread Derailer Premium Member

    Joined:
    Feb 27, 2000
    Posts:
    15,952
    Likes Received:
    444
    Location:
    East of San Francisco
    Reasonably sure that the 4L60E is a new iteration of the venerable and much-maligned TH700R4.

    I suspect you'll have to fiddle with the output shaft on the tranny, but that depends on what kind of '205 you have, i.e. what it came off of (auto or stick, brand, etc.)

    -- A
     
  3. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

    Joined:
    Dec 14, 2001
    Posts:
    22,059
    Likes Received:
    69
    Location:
    Pleasanton, CA.
    You will need a 205 that was originally from a TH350 with the 27 spline input gear with the drive sleeve to go with it, then you have one of two options next. You either need to tear apart the complete tranny and replace the output shaft with the AA short shaft but doing this depending on which CV front shaft you use the driveshaft may hit the tranny pan, or you can use the spacer with the stock output shaft. You will need a TH350/205 adapter as well. This is all assuming you have a 4WD tranny and not a 2WD tranny.
     
  4. jess

    jess Registered Member

    Joined:
    Jan 4, 2004
    Posts:
    27
    Likes Received:
    0
    Location:
    CT
    Advance Adapters sells an adapter that will mate a 700R to a 10 spline 205 case so I imagine it would work with the 4L60 as well
     
  5. big83chevy4x4

    big83chevy4x4 3/4 ton status

    Joined:
    Mar 22, 2002
    Posts:
    6,587
    Likes Received:
    0
    Location:
    Sheridan, Michigan
    the 96 and newer 4x4 4l60Es have a 6 round output, similar to the th400 no longer the 4 bolt. i don't know if they are the same as the th400 but looks very similar. they still have the 27 spline output /forums/images/graemlins/thinking.gif
     
  6. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

    Joined:
    Dec 14, 2001
    Posts:
    22,059
    Likes Received:
    69
    Location:
    Pleasanton, CA.
    4L60E's have a 4 bolt just like the TH350 and 700R4, the 4L80E has the 6 bolt like a TH400.
     
  7. big83chevy4x4

    big83chevy4x4 3/4 ton status

    Joined:
    Mar 22, 2002
    Posts:
    6,587
    Likes Received:
    0
    Location:
    Sheridan, Michigan
    when gm changed the 4L60E to a 2 piece case(removable bellhousing) in 96, they also changed the output to a 6 round.
     
  8. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

    Joined:
    Dec 14, 2001
    Posts:
    22,059
    Likes Received:
    69
    Location:
    Pleasanton, CA.
    Learn something new everyday. /forums/images/graemlins/thumb.gif
     
  9. big83chevy4x4

    big83chevy4x4 3/4 ton status

    Joined:
    Mar 22, 2002
    Posts:
    6,587
    Likes Received:
    0
    Location:
    Sheridan, Michigan
  10. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

    Joined:
    Dec 14, 2001
    Posts:
    22,059
    Likes Received:
    69
    Location:
    Pleasanton, CA.
    That is for a 2WD tranny, is the 4WD design the same?
     
  11. big83chevy4x4

    big83chevy4x4 3/4 ton status

    Joined:
    Mar 22, 2002
    Posts:
    6,587
    Likes Received:
    0
    Location:
    Sheridan, Michigan

Share This Page