I bought and tried to use them for the front bumper to create a 3 degree downward angle for the rollers. But it seems super flimsy. I used electric dremel to cut item 15506 plastic spacer to create 3 degree angle but due to the dremel being too high speed, part of the plastic melted. I had ordered the item 74024 and plan to use it to create 3/4/5 degree angled plastic spacer out of item 15506. Wonder will it work.... Anyone here tried before?