Did that to a 1997 S-10 Blazer I owned once. Lived in Arizona, was hot as hell, when my pump up n died. 125+ F temps, was NO way I was removing my draw tite hitch assembly to drop the tank and replace the pump!I used dad's sawzall, checked location thru fenders, did my best guess, and cut out a flap....Easy peasy! changed the pump assembly buttoned it back up added 2 pieces of metal strips to support the "door" in the floor under the carpet etc.... Now retired, living in the Philippines, own a 1997 Suzuki 4 door 4x4 Vitara (sidekick model in US) I need to fix my fuel sending unit so plan to use my cut off wheel and make an access door in this too....Sure miss my 45 year collection of Snap On tools back home! Buy cheapo tools here as needed !! Too old to be crawling around under a car in the dirt lol