Smooth Sliding Of Drawers

I have a large drawer where I keep most of my tools and supplies. I bought it ten years ago, and until now, it is still usable. I never had a serious problem with it during the years, but there was one instance when it really irritated me. This happened about two years ago. I was trying to open the drawer when it got stuck.

I tried to pull with all my might, but to no avail. I even tried oiling the sides, but it still would not budge. After much wrestling with it, the drawer finally opened. It turned out the sliders already gave way so I replaced it with 36 inch drawer runners. That did the trick as it never got stuck again.