How do I upload Paint and decal design with aftermarket wheels and suspension?

Hi,
FH3 is my first Forza game. I have made a few paint and decal designs but when I upload the Livery for public download it reverts the car back to stock suspension and wheels on the download file. How do I upload it with the wheels I have selected as well as the lowered suspension?
Thanks in advance.

Check this out

Thanks