How to put my mod into beamng?

so i have made some nice wheels in blender and i dont know what to do now. i have saved my wheel (i have the rim finished i dont think i need to make a tyre) as a .dae and as a .blend. i have no textures on the wheel at all.
i need help with making the wheel work with the game.







View attachment 161012 View attachment 161013
i know that i have posted about this on other forum sections. (content creation)