I did a search and found Pauly383K10's list of speedo gears. problem is I have a brown drive gear (4" long cylinder) that came stock with my M1008. I didn't see that on the list. I have regeared the truck with 3.73, and have kept the 235/85 R16 tires. My speedo reads 55mph when traveling approx 65mph. I didn't count the teeth when I had it apart, just noted the color because I remembered there was a list. anyone know how many teeth? Thanks in advance.