Under trunk lid spoiler braces?

Discussion in 'Chassis restoration' started by guyver002, Aug 10, 2018.

  1. guyver002

    guyver002 Well-Known Member

    Saw TPP has these spoiler supports for the GSX rear spoiler and my question is were they really used on factory GSXs? Mine is a tribute car so it would make sense it wouldnt have them per se. But if they provide real structural support then I should really have these on mine i'm thinking. Also if they should be there how do they go on? Anyone got a pick under thier trunklid to show them?

    Attached Files:

  2. Duane

    Duane Member

    Yes the 70-72 GSX cars came with these.
    They were installed for a reason, they stopped the rear spoilers from denting the trunk lid skin. If you don't have them and the rear spoiler gets pushed on too heavily, then you end up with a pointed dent in the lid.

    Originally there were 2 sizes for the braces, 70 & 71-72. I have no idea which style they are reproducing.
  3. BrianTrick

    BrianTrick Brian Trick

    Thank you for that information.
  4. guyver002

    guyver002 Well-Known Member

    So I should definitely be getting these it would seem! I scoured my fisher body manual, chassis manual and the internet for pictures again but I still cant seem to see how these were installed. My spoiler looks to be installed like the instructions here


    so I only have two small round holes for the underside nut access. I assumed the supports go under here, but I just don't see how they go in, they look too big to slide in those holes and go under there. It doesn't help the bracket pic shows only 1 stud hole so that doesn't see very supportive either. It also implies that I would have to choose a correct orientation for the bracket too! I am glad it's confirmed these are legit but I'm still scratchin my head over here and no way I will assume TPP has instructions correct or included. Been down that road before!
  5. agetnt9

    agetnt9 Agetnt9 (Dan)

    I made some out of 10 gauge aluminum.
  6. Duane

    Duane Member

    Here are some pics from the service bulletin. Now these would be the service replacement parts for the 70 cars, therefore the measurements of the brackets would be for the 71-72 style brackets and NOT the 70 units.
    Again I don't know what year the reproduced units were based off of.

    I actually have a set of originals for both the 70 and 71-72 style spoilers. Maybe I should find out what they are worth. It might go a long way towards making a payment for the Motion car.

    Anyway enjoy the pics.

    IMG_3357.JPG IMG_3358.JPG IMG_3359.JPG IMG_3360.JPG IMG_3362.JPG
  7. guyver002

    guyver002 Well-Known Member

    Hot dog that just put it all together for me. I never noticed the second hole in TPP pic of the brackets because of how they blended with the white background with the light reflection coming off them in the same spot, I also see and it makes perfect sense now the flat part that sticks out was meant to tuck in between the sheet metal of the trunk skin an lower half. So they really do tuck up in there and maybe the brackets are not as big as I'm thinking and they will go through the openings in the underside to be mounted. Thanks a million for sharing that documentation!
  8. Duane

    Duane Member

    No Sweat.
    Yes they barely fit thru the holes they drilled with a hole saw, but they do.

    If memory serves me correct the 70 spoilers had a shorter base (front to back), so the original ones for the 70 cars would be shorter.

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