I believe a member named Jp7 was the first to successfully remove and reinstall needles on a 2004+ cluster and have it work properly afterward. After that he was the go-to for '04+ cluster questions. There's some special trick to getting them off that is completely different than the 1993-2003 clusters that only require a fork to remove.
After some searching I found a couple of links for you...
Clicky: "How to take the needles off your 2004 or newer ranger - on DVD!"
Clicky: How 2 Video: Working with needles on a 2004+ Cluster
(click on the picture to view the video)
Clicky: How 2 Video: 2004+ Cluster - Dissasembling inside
Clicky: THE FIRST 2004+ LED CLUSTER IS HERE!!!! (pics galore)
I added other links because Jp7 likely noted needle removal/installation in his cluster build thread.
Why did you need to remove the needles in the first place???
Swapping clusters around isn't as easy on '04+ as it is on the '03 and older trucks. I believe you must swap over the odometer screen thing because it communicates with the PCM. I am sure that Jp7 has covered this is a thread or two. I've found a couple threads asking the same question and they more-or-less say either a: swap just the faces using your existing backing plate and odometer or b: swapping odometer to the new cluster.