I have support covers on both of the mustang differentials and they are pretty thick material for the cap support bolts to thread into. They are also aluminum, so they need to be thicker. This one being iron and not a bearing cap support cover doesn't need to be as thick. The manufacture says it clears sway and track bars, but I just wanted to confirm with someone who might've used one of these on their rig.
PML makes covers that clear and have drain plugs, but they're $235 or so
Differential covers with sand cast aluminum construction and classic looks. Finned for heat dissipation. Easy servicing with a drain hole and magnetic drain plug is provided. Made in USA by PML.
yourcovers.com