EVERY aftermarket ?? Okay got it. Yes my receipt will be in the truck glove box, along with any other receipt that pertains to a warranty for the truck. What good would it do if I were out of town, and its in a file in my home

Yes there are Walmarts, and Costco's all over this country. Big reason I will purchase from them, or maybe one that has been mentioned.
And here we go again, now its batteries, never asked , just stated where I was going to get a battery . Walmart hasn't worked out for you or your buddy, well I guess that means everyone that gets a Walmart battery its not going to work out for them.
Another thing, no expert on batteries by any means ,but never ,and I repeat never have I bought a battery that failed under warranty, been lucky, It would seem so, or MANY of you do not know how to take care of a battery. If you think I don't know much about the warranty's or date stickers you would be right. Doesn't mean I don't know anything about batteries.