My husband told me to post here so here it goes. I am refinishing an old dresser to use as a changing table. The problem is the drawers do not slide very easy since it's just dry wood on dry wood. I tried to install drawer slides but the drawers are tight and there is not enough space. I am currently using wax to rub on the wood so the drawers slide better but it wears off so fast. Any ideas of a coating or a paint I could put on the under side of the drawers? Thanks in advance.

I inherited this dresser from my grandparents and swapped the hardware out with those pictured. However the drawers slip down when opened Ian’s are just riding on a single track piece on the bottom. I’d like to add drawer slides to make this more functional but I’ve never done something like that. I’m fairly handy but wanted to see if y’all had any recommendations on which to use or resources to help with how to do it. Thanks in advance!