Hi im new here I just bought a 99 blaster from a friend and he said the rear shock needs to be rebuilt. He said is a 250 rear that he put on. so When I was calling around they said it was gonna be about $150 roughly to rebuild but I have been reading alot of posts and see that alot of you have a 400ex rear shock which I found on ebay for 25$-60$. So my question is should I just buy a 400ex rear shock or rebuild the 250 shock. Thanks for any help ive never owned a quad before so im trying to learn.