There is no use for changing only two winter tires no matter it is front wheel drive or rear wheel drive or even all wheel drive. ' u" q/ x T L" j& y ' }. l5 |" I/ M! uI watched a flips for the car equipped only 2 winter tires and 2 normal tires, when break or cornering, it is no different or even worse than no winter tires. 7 h; s% I8 R! C( Y* Q) ] I# m2 c; m0 S. e& n : f* J! t) @% M* l- Y" VSafty first, Canadian Tire clerk is wrong, he should not recommand change only two tires