I need your help! I can not afford 4 new tires, plus I have 2 that are 90% right now. My problem is when you ask anyone at a tire shop you get the standard line - nope, can't do 2 on a 4 wheel drive. If I get 2 new tires with simalar tread patterns will there be issues? I know there "can" be - but what are the real world experiences? Last thing is where would you put them - front or rear? Thanks in advance!