Looking at your picture, it may be those are just decorative and not meant to hold the rim on.. My comments are directed to fifth wheel and camper lugs. The lug nuts on you rig may be under that chrome cap and those could just be to hold the chrome cap in place. It does not look like a lug nut at all.
Maybe I'll just watch and let someone with an Alante comment!
2011 351RLTS Eagle, Mor/Ryde suspension & pin box
06 F350 Lariat PSD, SRW, LB, CC, EGR delete kit, 16K DrawTite hitch, Timbrens, TST TPMS
2017 GMC Terrain (future TOAD)
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