Toyota Tonneau PK3B1-35G5S

I need replacement corners for the tailgate end of this cover. Toyota wasn’t able to help me. Does anyone know where I could purchase these? I’ve attached pix of the top and bottom of what I’m looking for.

 

It looks a lot like the Lund ones, which you also can't find because they discontinued them because they suck (the plastic gets brittle over time with heat). I only know this because I accidentally broke the two rear ones on my neighbor's truck (I didn't know how it worked and they snapped when I thought it flipped up ). If you still have the broken piece(s) that slides into the rails* you can drill holes in them, screw threaded rod(s) into the pieces and then use some two part plastic epoxy. You have to be careful putting the thing back together but a year later his is still holding up.

*I just reached into the aluminum part and pulled it out with a pair of hemostats.