Ditto

Costco has by far the best return policy I have known. I've known lots people who have returned a merchandise after 3 years or more of buying it from costco and they still accepted it. Just hold on to your receipt. I don't know about their policy on batteries, but I'll buy anything from costco if it interests me.

GSspeed

i just bought one the 35/75 or some thing like that from costco fof 107.00 including tax,. to it was a good deal, plus u can return anything no matter when u bought it, so it worked out,
i installed it with the stock battery cover on there, it lookks alright, and i also used the little elevator that came with it . pretty nice sett up if u ask mee, thanks for all the info, gus,