Im sure its been ask but so far have not found the answer.. I have a 2011 1LT Disc front Drum rear, How hard is it to change the rear to Disc? is it worth it? IMO should hve been done at fctory as it wiuld reduce inventory cost! Thanks

Rich The Crusty Old Fart

 

Here's a little light reading on the subject. may not apply to your situation, but maybe something you can use.
https://www.chevyhhr.net/forums/show...ar+disk+brakes

 

Here look at posts 20 and 21 of this thread. It has pics of everything needed for the conversion.

https://www.chevyhhr.net/forums/show...465#post698465

 

Fantastic links Thanks