4L80E LQ9 swap 1988 k1500

Discussion in 'Transmissions' started by Jake88, Sep 8, 2017.

  1. Jake88

    Jake88 Newbie

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    Any specific parts for LQ9 4L80E 1988 K1500 swap I will need besides relocate cross member, dip stick, 32 spline transfercase shaft, PCM flash and drive shafts?
     
  2. df2x4

    df2x4 Domestics only.

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    New ACDelco transmission mount and hardware wouldn't be a bad idea. You'll have to either re-pin a couple wires in your harness or use a jumper harness from someone like Nelson Performance to convert the wiring. You'll need a new flexplate if you want to use all the TC bolt holes, if not you can just use three of the six holes for the torque converter. You'll need an appropriate torque converter if your trans doesn't come with one. Dipstick, fill tube, fill tube seal. Flexplate/TC inspection cover. Transmission cooler lines.
     
  3. Lordkay972

    Lordkay972 I'm Awesome

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    Are you swapping in the LQ9 also? If so, I'm interested! I plan on doing the same thing in my Blazer. LQ9/4l80/D60 front/D70 rear/~44" MT
     
  4. Jake88

    Jake88 Newbie

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    I've heard nothing but good things about a lq9 4l80e combo. I thought any 4l80 newer then 2001 is a direct fit to the lq9 (2002).
     
  5. df2x4

    df2x4 Domestics only.

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    Like I said in your other thread, you're looking for a 4L80E from 2000 or newer. That's when they changed to the LS bolt pattern. It's just one extra bolt at the top of the housing, though. Any of them will bolt up.

    https://sites.google.com/site/sloppywiki/everything-ls/4l80e-info
     

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