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All you need is one key and find a locksmith that will do it. I talked to a local locksmith he said with one key its $69.00 and with 2 its $40.00. I had the dealer do this for me and it cost $140.00 for one key.
That is why I purchased the ones I did. I cost me around $50 for 2 keys and fobs. So, now I have four sets for the truck I do not think I'll every need all of them but, you never know.