I bought the Rough Country 02-05 model 3" lift spindles for my 04 and never got around to installing them. Then I traded my 04 in for an 08. I called the dealership and asked for the part number for the stock spindles for the 04 and the 08 and they were the same. Although shops say there are different lift spindles for the 04 and 08, the spindles for the 02-05 models fit perfectly on my 08.
I think I just confused myself.