Got 3.55's a few weekends ago and have been trying to figure out the correct speedo gear. The sccoa calculator says tan, the one already in there from the 3.27's, but after searching here seem JL says orange. I am leaning towards orange because the calculator doesn't seem to be accurate when stock numbers are put in. It says a blue gear but mine came with a green and says a green gear shoulda been used with the 3.27's. The 3.27's and speedo gear came from a 96 sport so I was running the correct tire size and everything for that set up.