Buying Body Parts

I need to buy the box for our trucks. And would like brand new stuff. where can i find them?

BUY SAYING BOX U MEAN BED? IF SO, BRAND NEW FROM MAZDA YOUR LOOKING AT SOME SERIOUS CHANGE----SEVERAL THOUSAND!! MY SUGGESTION IS GO TO A JUNK YARD, I GOT A BED OFF OF A 90 4WD FOR MY TRUCK IN EXCELLENT SHAPE FOR @ $500.

a brand new box was $7000 bucks in here in canada

you can still buy the beds barnd new from mazda? wow, didnt know that...
a lot of beds around me are like 200-300

i looked into it a couple years back , the guy at the mazda placed couldn't stop laughing at the price

i am picking up a decent used one for $600 canadian