In article >, sturg57
@sbcglobal.net says...
> GEE-ZUS!,I am not having a happy time with these s.o.b.s!.The 2 new
> ones up front are superb!,the 2 on the back seem to fight against the
> front 2,rides really crappy!,want to get 2 new ones,but Christmas is
> on it's merry way.

What are the tires in the rear? Do they match eachother? Is the tread
identical with no abnormal wear? Are they both inflated equally? Is one
mounted on the rim backwards? Are you running any directional tires?
You're not giving us anything to go on here...