Why you didn't clean your pins? Usually when they're stuck that means inside is condense (water) what makes the pins and the housing rusty and thats the reason why they don't move smooth freely.. You should take them down and replace them.. They're few bucks.. Or clean them really good, put some new grease on and they'll be fine if there wasn't too much rust what make the surface more rough (as a sand paper) the metal should be smooth..
Yes - that's the only differemce, have just done my Auris 2015 and this guide has been very helpful. its a metal bracket that is set to contact the disc at 2mm, mine were 5mm.
