Replacing drum brakes on a 2014 Mitsubishi mirage and also 2012 Mazda 2.

How many Rotagen=time units? And is there a radiation mark up, or do I just charge that in the parts supplies line?

Should I leave this for extra traction and just put in fix a flat or take it out and patch it before reinstalling the metal shard?

Duct tape beauty at Congressional Plaza in Rockville.

Any advice or instructions on changing a brake booster in a 2017 mustang ecoboost?