l have not snowboarded in a few years but l still have my board. l am going sometime this week, l have outgrown my boots and the board is considered small for my height now. l can go buy new boots, but l do not wanna buy a whole new board.

So, basically will l be fine just getting new boots and using the old board/bindings?
my board is 133 burton chopper, l am 5'5, 135 lbs. hope that clarifies
also shoe size is 8.5

Well if your boots are too small, then chances are your bindings will be too. (it really depends on how much your feet have grown)
Also, how small is the board compared to your height? It should be atleast somewhere remotely near your chin, but you should really base the size on your weight instead. It also depends on your style of riding. Shorter for park, longer for powder. Look for last year is models. They're bascially the same specs just with a different look.

lol how would we know if you're too big for it if you did not list how big the board is and how much you weigh your height and how big your feet are.