New floor pans installed
 

I recently replaced the floor pans on my jeep Cherokee. What type of undercoating, bed liner, etc. would you recommend to put overtop of them... Should we put the bed liner or undercoating, etc. on the inside and outside of the floor pans.

Undercoating belongs on the underside only.Some bedliner theirs if its a off road toy but bedliner has no sound deaden so if its a daily driver i would use both sprays http://www.lizardskin.com/ offers ones a sound deaden the other is a heat barrier.

Thanks... I need a bed liner or undercoating that will keep the moisture for getting into the floor boards and rusting them

Two things cause the floors to rot out,No under coating and living where it snows and they salt the roads,Or the windshield or doors leak letting water inside the jeep.Like i said make sure the undercoating isn't used on the inside.The stuff is rubberized so it never really drys and would stink bad probably.