How To Install Reinforced Rear Seat Delete (15-18)

Posted 11/26/2018 by Ziad El-Halabi

Replace your unused rear seat with this 2015-2018 Mustang reinforced rear seat delete kit! Your factory three-piece rear seat is heavy and has most likely never been used. Now you can shed that unused weight with this easy to install reinforced rear seat delete! This kit features a one-piece, reinforced fiber molded carpet that perfectly matches the shape of the car, underneath where the stock seat was. With the provided installation hardware, this molded seat delete hugs the body lines for a factory fit and finish! The components of this kit weigh in at 4 pounds, and depending if the rear seat belts are removed, saves approximately 26-34 pounds! Detailed installation instructions are included for a quick and easy installation! NHRA Legal. To go along with your weight savings, this reinforced rear seat delete is great for Mustang owners that regularly race their S550 at the track! This seat delete meets or exceeds the FMVSS302 standard for flame retardant capability. This means you can use this rear seat delete at any NHRA event! Application: 2015-2018 Mustang Coupe Item # LRS-1517MLD MPN # R1517MLD17

FOLLOW: 2015 mustang , mustang

How To Install How To Install Reinforced Rear Seat Delete (15-18)

Tools Needed:

  • Utility Blade
  • 13mm Socket
  • T-40 Torx Driver
  • 15mm Socket
  • Wrench/Ratchet or Impact
  • T-47 Torx Driver
  • Flat Head Scewdriver
  • Drill
  • Measuring Tape

    Installation Instructions

    1. Begin by removing the front seats from the car. They are held in with four T-47 Torx bolts. Remove the four bolt covers with a small flat head screwdriver.


    2. Remove the bolts, disconnect the electrical connection if equipped, and then remove the seat.



    3. The rear seat bottom is removed by simply pushing in at the center of each side to release the clips.



    4. Remove the two outer 15mm seatback retaining nuts.



    5. Lower the seat backs and remove the middle 15mm bolt.



    6. Now you can remove the seat backs from the car.



    7. Unscrew the two plastic retainers from the floor and position the small carpeted floor piece out of your way.



    8. Loosen and remove the T45 Torx bolts securing both child restraint brackets to the floor.



    9. Reposition the small carpeted floor piece and plastic retainers.



    10. Loosen and remove the two 13mm bolts securing the seat belt receptacles to the floor.



    11. Remove the rear interior quarter panel, start by pulling out on the section located near the package tray. Work your way across the top of the panel near the quarter window and driver seat belt.



    12. Lift up on the lower door sill panel just enough to remove the lower section of the rear interior quarter panel.



    13. Bring the panel forward and then remove the rear seat belt trim piece. Now you can fully remove the interior quarter panel from the car.



    14. Gently pull the c-pillar away from the car.



    15. Remove both push pins securing the package tray.



    16. Pull the package tray towards you and then remove it from the car.



    17. To remove the seat belt assemblies, loosen and remove the three 13mm retaining bolts.



    18. Remove the 13mm bolt securing the seat belt assembly to the floor and it’s free to come out.



    19. Remove the four T-40 Torx bolts that secure the seat back strikers.



    20. Reposition the package tray back into place.



    21. Measure up from the bottom two and one-eighth inch. Then measure seven-eighths inches from the oval opening and mark the area.



    22. Center punch each mark and then drill each hole with a five-sixteenths drill bit. (Vacuum or use compressed air to clean up any debris.)



    23. Reposition the package tray back into the car and reinstall each c-pillar trim panel.



    24. Reinstall each rear interior quarter panel and reposition the lower door sill panels.



    25. Before installing the rear seat delete, reinstall all of the bolts back into their respective areas; Use a pair of needle nose pliers to remove the factory installed star washers. (Doing this will prevent water from potentially making its way inside the car.)



    26. From the center of the front most hole near the floor carpet, measure an inch back and then center punch.



    27. Drill a quarter inch hole; vacuum up the metal shavings and then reinstall the package tray.



    28. Position the rear seat delete into the car and install the provided push pin into the quarter inch hole that you just drilled.



    29. Slide one of the provided washers over the previously removed T40 bolts from the seat back striker and install it into place.



    30. Use a sharp utility blade to cut the corner of the rear seat belt trim piece and slide the belt out of the trim piece.



    31. Reinstall each modified trim piece.



    32. Go ahead and double check work, then you’re all finished.



    • 2015-2019 Mustang Reinforced Rear Seat Delete Kit Coupe
      #LRS-1517MLD

      $399.99

      VIDEO AVAILABLE

      Mustang Rear Seat Delete Kit Replace your unused rear seat with this 2015-2018 Mustang reinforced rear seat delete kit! Your factory three piece rear seat is heavy, and has most likely never been used. Now you can shed that unused weight w Read More


    About the Video

    2015-2018 Mustang Reinforced Rear Seat Delete - Install & Review

    Check out our YouTube channel for even more tech tips, installation videos, how-tos, and more. The best place to go for anything Mustang related!

    Published on 2018-01-03
    Mustang Rear Seat Delete Kit.
    Replace your unused rear seat with this 2015-2018 Mustang reinforced rear seat delete kit! Your factory three-piece rear seat is heavy and has most likely never been used. Now you can shed that unused weight with this easy to install reinforced rear seat delete! This kit features a one-piece, reinforced fiber molded carpet that perfectly matches the shape of the car, underneath where the stock seat was. With the provided installation hardware, this molded seat delete hugs the body lines for a factory fit and finish! The components of this kit weigh in at 4 pounds, and depending if the rear seat belts are removed, saves approximately 26-34 pounds! Detailed installation instructions are included for a quick and easy installation!

    NHRA Legal.
    To go along with your weight savings, this reinforced rear seat delete is great for Mustang owners that regularly race their S550 at the track! This seat delete meets or exceeds the FMVSS302 standard for flame retardant capability. This means you can use this rear seat delete at any NHRA event!

    Application: 2015-2018 Mustang Coupe

    Item # LRS-1517MLD
    MPN # R1517MLD17
    Transcript
    How's it going everyone? Landan with Late Model Restoration. In this video, I'll be checking out this carpeted rear seat delete and the benefits of having one in your S550 Mustang.

    If you're wanting to shed some weight in your S550 Mustang, then deleting the unused back seat is a good starting point. The bottom cushion, seat back and the hardware tips the scale at a surprising thirty-seven and a half pounds.

    This reinforced carpeted rear seat delete for your S550 Mustang closely replicates the delete found in the GT350R Mustang at a fraction of the cost. Being pre-molded and reinforced, this rear seat delete flows with the contours of your Mustang’s interior and presents a very high end look.

    The carpet is black in color so it's going to blend well with the interior panels in your Mustang. Another very cool attribute to this delete is that it meets the NHRA's FMVSS302 standard for flame retardant compatibility. The rear seat delete itself weighs in at roughly four pounds. Do the math and that's approximately thirty-six pounds in total weight savings.

    For this install, I am going to be removing anything and everything related to the rear seats. This will include the seat bottoms, seat backs, belt receptacles, belt assemblies, and all of the retaining hardware.

    Now, to install this rear seat delete into your S550, I would personally begin by removing the front seats from the car. They are held in with four T-47 Torx bolts. You'll simply remove the four bolt covers with a small flat head screwdriver, remove the bolts, disconnect the electrical connection if equipped, and then remove the seat.
    The rear seat bottom is removed by simply pushing in at the center of each side to release the clips.

    Remove the two outer 15mm seatback retaining nuts.

    Lower the seat backs and remove the middle 15mm bolt.

    Now you can remove the seat backs from the car.

    Unscrew the two plastic retainers from the floor and position the small carpeted floor piece out of your way.

    Loosen and remove the T45 Torx bolts securing both child restraint brackets to the floor.

    Reposition the small carpeted floor piece and plastic retainers.

    Loosen and remove the two 13mm bolts securing the seat belt receptacles to the floor.

    To remove the rear interior quarter panel, start by pulling out on the section located near the package tray.

    Work your way across the top of the panel near the quarter window and driver seat belt.

    Lift up on the lower door sill panel just enough to remove the lower section of the rear interior quarter panel.

    Bring the panel forward and then remove the rear seat belt trim piece.

    Now you can fully remove the interior quarter panel from the car.

    Gently pull the c-pillar trim panel away from the car.

    Remove the passenger side rear interior quarter panel and gently pull the c-pillar away from the car.

    Remove both push pins securing the package tray.

    Pull the package tray towards you and then remove it from the car.

    To remove the seat belt assemblies, loosen and remove the three 13mm retaining bolts.

    Carefully rotate the assembly out of the body of the car.

    Finally, remove the 13mm bolt securing the seat belt assembly to the floor and it’s free to come out.

    Repeat these steps for the other seat belt assembly.

    Remove the four T-40 Torx bolts that secure the seat back strikers.

    Reposition the package tray back into place.

    Measure up from the bottom two and one-eighth inch.

    Then measure seven-eighths inches from the oval opening and mark the area.

    Do this for both sides and then remove the panel.

    Center punch each mark and then drill each hole with a five-sixteenths drill bit.

    Vacuum or use compressed air to clean up any debris.

    Reposition the package tray back into the car and reinstall each c-pillar trim panel.

    Reinstall each rear interior quarter panel and reposition the lower door sill panels.

    Before installing the rear seat delete, reinstall all of the bolts back into their respective areas; Use a pair of needle nose pliers to remove the factory installed star washers.

    Doing this will prevent water from potentially making its way inside the car.

    All of this hardware retained the seat belt receptacles, child restraint brackets, and seat belt assemblies.

    From the center of the front most hole near the floor carpet, measure an inch back and then center punch.

    Drill a quarter inch hole; vacuum up the metal shavings and then reinstall the package tray.

    Position the rear seat delete into the car and install the provided push pin into the quarter inch hole that you just drilled.

    Slide one of the provided washers over the previously removed T40 bolts from the seat back striker.

    Install it into place and do this again for the other side; fully tighten the hardware.

    If necessary, place some of the Velcro strips underneath the leading edge of the rear seat delete.

    Use a sharp utility blade to cut the corner of the rear seat belt trim piece.

    Be sure and position the belt out of the way.

    Once the cut has been made, slide the belt out of the trim piece.

    Do this for the other side and then reinstall each modified trim piece.
    Go ahead and double check work, then you’re all finished.

    Now, as far as installation goes here guys; this rear seat delete only took me about an hour from start to finish. It looks extremely time consuming, but trust me on this one; it’s actually pretty easy.

    Again, if want to reinstall the seat belt trim pieces, I would strongly recommend simply cutting the trim to remove it from the belt. Other than that, and drilling three holes, this one installs with minimal modifications to your car.

    To see more how-to videos covering the S550 Mustang, be sure and subscribe to our YouTube channel. This reinforced carpeted rear seat delete is currently available for your 2015 to 2018 Mustang from the real Mustang enthusiasts, LMR.com!