205/45 on back and 205/40 on front?? ZR

Got 205/45 on my car and the rub on front. Swapping to 205/40 tomorrow. Probably a stupid question, but is it ok to run the 205/45 on the back and the 40's on the front for literally 2 weeks??

Would it cause any issues with safety?

from the last news http://ift.tt/1pG4lFF

via IFTTT