I recently purchased a used Lenovo Thinkstation P300 to serve as a Plex server. As you'd expect I wanted to replace the included HDD with my own. The machine has two HDD caddies, but those caddies are proprietary and in a terrible way. They are plastic sleds that flex to slide into the case enclosures and that's swell, but the way you mount the HDD into those sleds/caddies is a mix of metal peg and rubber grommet. That rubber grommet is the problem. The P300 is 6 -7 years old and those rubber grommets have deteriorated and can't be used to secure the HDD to the sled/caddy. I have found some sled/caddies on eBay and those will be here in a few days, but I'm assuming they will suffer from the same problem due to their age.
Does anyone have any personal experience with the Lenovo P300 and have replaced their HDD sleds/caddies? I can't seem to find anything searching on google. I have been thinking about trying to find longer HDD screws to use with washers to secure them to the sleds/caddies, but I haven't had any luck yet.
From my searching these sleds/caddies have been used in IBM machines also.
The picture is from the sleds/caddies I ordered. The circled bits on mine are destroyed and can't be used. They have crumbled apart on both sleds/caddies.