Ok, I went to TheRangerStation and read the information about diff tags, but I can't figure out what gears I have in mine. I know it's the 8.8" rear just from the shape as well as the 88 on the tag, but the other numbers don't seem to match up to any tag codes listed on that site.
Bottom: 10 88 4FGT
Is the 10 supposed to be for 4.10 gears? The information on the site states that there will be 3 numbers with/without a letter, but I only have what's show above.
Here's an image: