Don't know anything about the hood struts that Summit sells, but you CAN buy the 4th gen hood struts to fit your 3rd gen truck.
The quality is oem and the price is much less then the 3rd gen struts and they fit perfectly. You can get them from an online discount Mopar parts distributor.
The struts made by StrongArm are also excellent and available from Amazon.
Here are some part#s to help out--
3rd gen hood strut Mopar #55276321AC
4th gen hood strut Mopar #55372200AA
3rd gen aftermarket StrongArm #4364