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TMI Sport Seat Seat Foam w/ Knee Bolster - 26 in. Back (84-89 All)

AmericanMuscle no longer carries the TMI Sport Seat Seat Foam w/ Knee Bolster - 26 in. Back (84-89 All). Please check out 1979-1993 Foxbody Mustang Seats, Seat Covers & Upholstery for an updated selection.
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Features & Details

  • 26" Hi-Back Seat Foam with Knee Bolster
  • Great for Restorations
  • Fits 1984-1989 GT & LX Sport Mustang Seats
  • Sold Individually
Regain Comfort. Have your GT or LX Sport Mustang seats become stiff and hard? Then you need to replace that tired 20 year old foam with brand new replacement TMI seat foam from AmericanMuscle for a more comfortable ride.

OEM Quality. Made to the original factory specifications this TMI Mustang replacement seat foam is thick, durable, and makes the perfect replacement when restoring your Mustang's interior for style and comfort.

Application. This TMI Replacement Seat Foam is specifically designed for the 1984 through 1989 GT and 5.0 LX Sport Mustangs with 26" High Back seats and Knee Bolster. Sold Individually.

Fitment: 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 Details

MPN# 43-73702

CA Residents: WARNING: Cancer and Reproductive Harm -

What's in the Box
  • (1) upper seat foam
  • (1) lower seat foam
Installation Info
Will it fit my Mustang?

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Customer Reviews (3) Write a Review

Overall Rating 3.3

out of 5 stars

Installation Time:Afternoon

  • Fit 4.333333 4.3
  • Appearance 3.333333 3.3
  • Bang For Your Buck 3.333333 3.3

  • 1/5

    Installation Time: Afternoon

    October 13, 2014

    Seat foam

    I would not recommend this product. Simply because it does not have the metal reinforcement for the plastic seatbelt guide to be installed located on the top corner of the seat. The original foam had the metal reinforcement molded into the foam.


    Year: 1985 Submodel: GT King of Prussia, PA, USA

    Helpful (1)

  • 4/5

    Installation Time: Afternoon

    May 27, 2014

    Helps you car feel new again

    Before this foam I was practically sitting on the floor in my 86, but now I sit high and firm again. You don't realize how much every little bump is accentuated by sloppy seat foam, but you will notice as soon as you swap in a new TMI foam set. I reused the old covers which were in good shape, it is very possible to replace the foam without new covers but you will need to take your time stretching the covers into place. The foam fits right onto the frames but you may need to push or pull the rods in the foam to get everything lined up correctly. The first set of foam I recieved was in an unacceptable condition as received but American Muscle was quick to set the situation right. Great for lowered mustangs which ride rough.


    Year: 1986 Submodel: GT Long Island

    Helpful (3)

  • 5/5

    Installation Time: Less than 1 Hour

    April 19, 2014

    The foam is a perfect restoration fit!

    The seat feels like new! great support and now I feel as stable as the rest of the car as I drive! Installation is very simple and easy to understand. Worth Getting!


    Year: 1986 Submodel: GT

    Helpful (3)

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