What numbers on a ring gear tell you the ratio? (picture)

[Irish_Alley]

this is a picture of a 4.09 ring gear aka 4.10 its for the front
but to figure out the ratio of yours you take the last two sets of numbers 45-11. these are the ring teeth-pinion teeth. you devide the ring by pinion (45/11) and that equals 4.09090909 or 4.10. also if you see on the far right of the ring it says 9 but it really says 456 upside down i dont know why it says this but if your does dont pay no mind to it just the last two sets of numbers

[ehjorten]

Is this an actual question Irish, or are you just putting this out there for people to search and find?  Best and most reliable way to tell is to count the # of teeth on the ring and divide by the count of the # of teeth on the pinion.

No need to look for a number if you have the gears exposed so that you can count the teeth, but the number should still be there.

[Irish_Alley]

This is a FYI. When the gears are in the axle I can't never count the pinion. When you tell someone what numbers to divide some need a picture.

[pholliday1]

The 45-11.