A Tacoma tri-fold cover can reduce water entry, but weather-resistant does not mean waterproof. Check seal contact, drain routing, bed-rail installation and the specific leak path.
A high Tacoma bed rack can coexist with a hard or retractable cover only when the cover’s rails, opening path and the rack’s mounting hardware are designed to share the bed.
A Tacoma rack and factory tri-fold cover need an explicitly documented shared mounting system. Bed-rail access alone does not prove that the cover can open beneath a tent rack.
A RetraxONE XR can work with an upTOP TRUSS bed rack when the rack uses the XR T-slot mounting hardware. Confirm the exact rack, bed length and load plan before buying.