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Bumper guard dilemma

Discussion in 'Paint and Body' started by EastAustinSawdust, Mar 22, 2020.

  1. EastAustinSawdust

    EastAustinSawdust Member

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    Got my hands on a pair of bumper guards. They didn’t have pads, so I ordered a pair through LMC. Just got the pads and they’re not quite plug and play.

    The pads each have 4 compression plugs on the back, designed to be pressed into rectangular shaped holes on the bumper guards. But the bumper guards have round holes or no holes where these rectangular holes should be. Pics:

    Bumper guards:
    [​IMG]

    Pads:
    [​IMG]

    Plugs on back of pads:
    [​IMG]

    Close up of a plug:
    [​IMG]

    Got a few options, curious to hear your thoughts:

    1) Use a Dremel to drill out rectangular holes in the bumper guards. Seems tedious and easy to mess up.

    2) Use a Dremel to modify the plugs so they fit in round holes. Also tedious, also easy to mess up, and not all plugs have a corresponding hole.

    3) Cut off the plugs and instead attach the pads with carriage bolts. Seems like the easiest solution, but then I’ll have carriage bolt heads showing on the front of the bumper guards. Slight aesthetic drawback. Could paint bolt heads black to make them blend in.

    Thoughts? Other ideas?

    And, are these bumper guards not OEM, or are the LMC parts just not made to fit? Had this problem with plenty of LMC parts before, so would t be surprised.


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  2. bucket

    bucket Super Moderator Staff Member

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    Personally, I'd cut new slots in the bumper guards.

    The original bumper guards from my '77 have round holes and the pads had studs. At some point, the pads became the snap-in type and they held up better too.
     
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  3. nabeshin

    nabeshin Full Access Member

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    Cut rectangular holes. Remember to measure twice.
     
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  4. FireTruck1984

    FireTruck1984 Full Access Member

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    Looks like you have the wrong pads.. those are the same as I have on both my ‘84s. 1981-1987
     
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  5. FireTruck1984

    FireTruck1984 Full Access Member

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    50A8173E-64B4-4760-83F1-6B626CA363B8.jpeg
     
  6. EastAustinSawdust

    EastAustinSawdust Member

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  7. FireTruck1984

    FireTruck1984 Full Access Member

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  8. bucket

    bucket Super Moderator Staff Member

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    The guards are contoured differently to fit the bumpers, but the pads are the same shape.
     
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  9. bucket

    bucket Super Moderator Staff Member

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    Also, '77 may have been the only year for the bolt-on pads. I need to look at my '78 to see what style they are.
     
  10. FireTruck1984

    FireTruck1984 Full Access Member

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  11. EastAustinSawdust

    EastAustinSawdust Member

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    According to the seller, the guards were off a 1980 round eye.


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  12. FireTruck1984

    FireTruck1984 Full Access Member

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    Very strange, that is a dilemma. I guess modify your bumper guards to accept the pads ?
     
  13. RecklessWOT

    RecklessWOT Full Access Member

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    Maybe just cut off the studs and "glue" on the pads with some RTV or some fender adhesive? They're not structural in the least bit, if you ever have to tear them off in the future so be it. Seems easier than grinding/modifying your current bumper thingies, especially since it seems like you don't know exactly what year the come from. You can always find the right ones later, and if not, who cares as long as they look right from the outside and don't fall off?
     
  14. EastAustinSawdust

    EastAustinSawdust Member

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    Thought about that, problem is surface area. The side of the pads that mate with the bumper guards isn’t a smooth flat surface, it’s ridged. So there’s actually very little surface area to hold an adhesive bond.


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  15. Craig 85

    Craig 85 Full Access Member

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    There were 2 designs. Look towards the bottom of the page. GM 1155103.

    [​IMG]
     
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