Rear brake cylinder end cap fell off during brake shoe swap.

[Pinchlite]

While replacing shoes one end of the cylinder fell off.I quickly slid back on and nothing leaks(Dont think they are original

(Nothing hit the ground or got dirty/contaminated)


They have a rubber seal with spring inside so not sure if i need to bleed?

for a first drum pad replacement all went well,besides some frusturating moments of course


I took for drive and all feels fine,should I leave as is?

Pic of what came off(Before pic)

http://i.imgur.com/y9mMWmj.jpg