What are these threaded holes for on the OEM skid plate?

[boyfester]

I've been looking on this site and haven't been able to find out why the OEM skid plate (plate covering oil pan bolt) has two (2) threaded holes. Does Toyota make another stamped skid plate for the transmission? My 2014 4Runner TE only came with the engine skids.

 

[214RUNNER]

It’s for a stock rear skid on lexus 460 & 470 its just a small plastic cover that bolts on the engine cover,I have never seen one on the 4 Runner

 

[boyfester]

It’s for a stock rear skid on lexus 460 & 470 its just a small plastic cover that bolts on the engine cover,I have never seen one on the 4 Runner

Thanks! I wonder if that help deflect small rocks from hitting the transmission pan.