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Thread: 4l60e vs 4l80e dimension differences

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  1. #1
    Join Date
    Dec 2010
    Location
    orange county, ca
    Posts
    16

    4l60e vs 4l80e dimension differences

    im looking to swap my worn out 60e with an 80e and have a couple questions.

    1. are there any differences in obs and nbs 80e's like there are with the 60e's?

    2. will my transfer case bolt to the 80e or do i need to get a new one?

    3. and will i need to resize the driveshaft lengths and move the crossmember?

    4. lastly will the shifter linkage work the same?

    the truck is a 94k1500 so it has the old hardware instead of a cable.

    any input helps, thanks
    95 rcsb, built for the desert, sbc w/edelbrock mpfi, custom front long travel 18in travel, rear 4 link 29in travel.
    94 ecsb, daily driver, 6inch rcd lift, 350 pending 6.0 swap, 14 bolt also on the way

  2. #2
    Join Date
    Sep 2007
    Location
    Broken Bow, OK
    Posts
    1,434
    2. The output shafts are different for the 60 vs 80. You will have to get a different case or swap the input on yours.
    3. Yes, the 4L80e is longer
    4. Usually, yes.

  3. #3
    Join Date
    Dec 2010
    Location
    orange county, ca
    Posts
    16
    ok, thanks.
    95 rcsb, built for the desert, sbc w/edelbrock mpfi, custom front long travel 18in travel, rear 4 link 29in travel.
    94 ecsb, daily driver, 6inch rcd lift, 350 pending 6.0 swap, 14 bolt also on the way

  4. #4
    Join Date
    Mar 2011
    Posts
    4
    I think the 80 is much larger in size. I know it's much heavier 4L80 is 220 pounds.

  5. #5
    Join Date
    Dec 2010
    Location
    orange county, ca
    Posts
    16
    yeah, i think im having a change of heart. just gonna go with a stout 65e
    95 rcsb, built for the desert, sbc w/edelbrock mpfi, custom front long travel 18in travel, rear 4 link 29in travel.
    94 ecsb, daily driver, 6inch rcd lift, 350 pending 6.0 swap, 14 bolt also on the way

  6. #6
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    Quote Originally Posted by chevyguy1450 View Post
    yeah, i think im having a change of heart. just gonna go with a stout 65e
    You will be back if you make any power.

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