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JEGS 4L60E Performance Transmission for 2005 & Earlier LS-Series Engines


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JEGS 603020
Truck Freight: $129.00
4L60E Performance Transmission
  • 2005 & Earlier LS-Series Engines
  • Rear Wheel Drive
  • Lockup
  • Case Fill
  • Dyno Tested
  • Ships on 03/01/21

    Thank you! We will notify you when this product becomes available.


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    603020 is rated 2.3 out of 5 by 3.
    Rated 2 out of 5 by from Shift solenoid a I really hate writing bad reviews. But I bought this 4L60E in Hopes to have my GTO back but now after installing. Trying to figure out what's going on with shift solenoid a for a P0753 code "shift solenoid a electrical" pretty bummed after installing to find out my car would still be on jack stands. Packaging was great and transmission looked great on the outside but its stuck in limp mode for now..
    Date published: 2019-08-14
    Rated 1 out of 5 by from extremely poor product Transmission arrived packet very poorly. When I opened the box I thought Jegs had sent me a junkyard transmission. It was covered with dirt, paint worn off and fluid running out the input shaft. Immediately called Jegs with problem. Jegs picked up transmission and I'm still waiting for a refund.
    Date published: 2020-11-03
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    Does this come with torque converter?

    Asked by: Kornbred
    No, this does not come with the torque converter.
    Answered by: Rusty B
    Date published: 2018-10-31

    Will this Transmission Jegs part # 555-603020 fit my 2001 Chevy 5.3 L engine which I have a 2 Wheel drive pickup with a 4L60E transmission. Thanks!

    Asked by: KC Houston
    Yes, this should work in your Chevy truck.
    Answered by: Rusty B
    Date published: 2018-07-18

    whats the warranty?

    Asked by: 03LSXTT
    These transmissions have a 1 year warranty.
    Answered by: Rusty B
    Date published: 2018-04-18

    Will this fit a 98 tahoe 5.7 4 wheel drive?

    Asked by: yobtaF
    No, this is made to fit the LS series of engines. Please look at this link - http://www.jegs.com/i/JEGS-Performance-Products/555/603015/10002/-1
    Answered by: Rusty B
    Date published: 2018-04-04

    2000 Chevy Silverado 1500 5.3 LS 325, Not sure what Transmission had in it but seems it was , Would this be a Solid Fitment?

    Asked by: BigMumbles
    This would work for most 2wd applications. This will be an easy installation if you are replacing a 4L60E
    Answered by: Rusty B
    Date published: 2018-03-21

    I'm look at this for a direct replacement in a 1998 Chevy Tahoe 2dr 2wd 5.7. If this will fit can you recommend a converter to go with this please. Thank You!

    Asked by: Jim Pape
    If this is replacing a 4L60E then this will work. this is a good converter - http://www.jegs.com/i/ACC-Performance/082/4945HD/10002/-1
    Answered by: Rusty B
    Date published: 2018-03-16

    Will this fit in a 1997 GMC Sierra k1500 5.7L?

    Asked by: SwimmiestFish
    You will probably need this transmission - http://www.jegs.com/i/JEGS-Performance-Products/555/603010/10002/-1
    Answered by: Rusty B
    Date published: 2018-03-07

    Will this fit the 2004 gto 5.7 ls1 without changing the drive shaft? 

    Asked by: TwinTurboGTO
    If your car has a 4L60E already, this should be a direct swap.
    Answered by: Jon Jegs Tech
    Date published: 2018-02-09
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