get marlins springs..... marlins springs are sweet....
they dont offer a 7" but you can always get their 5, or 6 " springs and run longer shackles
stay away from the big lift manufacturers, their lift springs are usually hard and dont flex very well
i have seen broken nwor springs on ttora and heard how they have horrible customer service, i will never buy any springs from them
i would rather buy the springs from marlin or all-pro because theirs are tried and true