One of the first things I did was get rid of the factory tires and install 10-ply LTs that were the same size and then I added my Smartcap, which is about 170 pounds. The last thing I want is a flat with a 4-ply.
I get 22-23 MPG on the highway, but I drive like an old guy.
I designed and printed off a below-filter 3d channel. If you've got a 3D printer or know someone, you can find the file here:
https://www.thingiverse.com/thing:6742234
Yeah... been there.
Here's part of the answer:
https://www.amazon.com/dp/B01HP5UZIO?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_2
https://www.amazon.com/dp/B0B8TFZ698?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_1
I frequently off-road in the middle of Idaho and have had all four generations of Tacomas. I have never heard of a bed "tearing apart" other than from hauling motorcycles that were improperly strapped down. Certainly, none of mine has been damaged.