Unistrut bed rails in a 1st gen?

I'm looking at doing something similar with some USCC L-track in the same spot. Looking to mount a rack and RTT, is there any solution for reinforcing that area to hold more weight or do I need to rethink how I should mount the rack?

 

It mounts to a very thin piece of metal. I ended up making a bed rack out of angle iron which rests on top of the bed.

 

I was thinking about securing a piece of unistrut along the length of the bed underneath the rail.

 

have you done this? am thinking of doing the same.

 

Yes I did. I used to re-enforce the bed rails before I put my hard cover on. Had to trim some of unistrut backside to fit the bed side walls

 

Thanks for responding! How did you attach to under the rail?

 

It fit pretty tight. I drilled and put bolts through the inside lip of the bed into the unistrut. I did not bolt through the top because I put a hard cover on.