I had this old chest of drawers that needed repair, the timber drawer rails were worn out and it was difficult to pull out the drawers, they were always getting jammed. upon further investigation, I found that the drawer rails were worn out, so I decided to replace and /or invert the worn rails.
The drawers were also worn out, instead of adding timber to replace the worn out section of the drawers, I had some old salvaged pine drawers that I used to replace the worn out drawers. I am very happy with the results, I now learnt that you need to lubricate the timber rails to prevent the rails wearing out, I used wax paste.
Before photos:

