GM Seat Jacker Installation Instructions 2019 - 2025 GM 1500 / 2020 - 2025 GM 2500 / 3500 / 2021 - 2025 Chevy Suburban / Tahoe / Blazer / Trax / Hummer / Acadia
Installation Instructions:
General Note: To help prevent cross threading during installation, we recommend verifying bolts and threads by taking the applicable bolts and threading them in by hand to the corresponding hole. Seat Jackers are sloped so make sure the larger side is facing forward. Also, if installing both front and rear Seat Jackers make sure the larger side is facing forward. Same steps apply for the rears, just reversed. Note: If you are installing the optional MMP it will bolt directly to the front of the Seat Jacker blocks with the threaded hole in front.
- Step One: Remove any plastic trim at the feet of your seat. Remove both front factory seat base bolts and loosen the two rear seat bolts but do not remove them.
- Step Two: Lift the front seat by pushing back on the headrest or by asking a helper to pull from the back seat.
- Step Three: 1/2 Inch Lift/One Seat Jacker Shim - Choose the Seat Jacker shim with the threaded hole and "Seat Jackers" engraved on it and place it under each front seat rail in between the rail and your carpet. The threaded hole in front of the Seat Jacker is for the optional MMP. Move to step four.
- Step Three: 1 Inch Lift/ Two Seat Jacker Shims - Take both Seat Jacker shims and stack them together. The Shims are notched and will nest together. At the front seat mounting point, place the Seat Jacker stack in between the front seat rail and your carpet. The shim that has "Seat Jackers" engraved will go on top. Move to step Four.
- Step Four: Take the provided M10 1.5 x 60mm Cap Head Bolt with washer and thread it through the seat rail, through the Seat Jackers, and into the floor of the vehicle. *IMPORTANT – IF THE SEAT RAIL HOLES DO NOT LINE UP, LIFT UP THE SEAT ABOUT 1/4 INCHES AND THREAD IN THE BOLT A COUPLE OF THREADS. IF NEEDED ADJUST THE SEAT RAILS ONE AT A TIME TO GET EVERYTHING TO LINE UP AND CONFIRM REAR SEAT BOLTS ARE LOOSE ENOUGH.
- Step Five: Torque two front bolts and two rear bolts to 30 ft-lbs
- Step Six: Reinstall any plastic trim pieces that were removed in Step One.
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- Check bolt torque at regular intervals and don’t forget to post a review. -