i have got alot of bills to pay off and moneys kidna tight, my origonal plan was to go with 275/40's all the way around cuz i live in richmond (sitty roads)and it would make for a smother ride. My 2 back tires r almost bald... not that i was smokin them or anything

... so my dad offered to spring for 2 of my tires...and sinces my 265/35's in front r perfect i was wondering if i could run 275,40's on the back with the 265'35s on the front till i got the cash to drop new tires on the front to match... im lookin for less performance and more toward convenences, every day driving ablity and smother ride, and i belive the 40's will make it a smotehr ride + give me a little more clearense cuz i tend to scrap alot! someone tell me if im misstaken ... or could i got with 275/40s all the way around or what .. some guidences PLS!... (FYI sorry about my crappy spellin)