i just was replaceing my muffler and i look up there is crazy rust right there no where else is rust well i lift up my back seat and pulled up the carpet right behind the little seperater bar is a hole of rust anyone know where i can just just a floor pan for that side i can ribet it in and then weld need help here yall

 

Yeah, the floor is completely gone on my 89 as well.. I just ripped out the carpet and got a roll of tin and just tech screwed it down the best I could. It's good enough...

 

I had the same problem. I took a wire wheel and ground down all the rust and cut out the bad spot with a angle grinder, then put por-15 over it then got some galvanized sheet steel and rivited it down seam sealed it. I then put self etching primer over the galavinzed then rhino lined over that. Worked out great