73-87chevytrucks.com
73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: Irish_Alley on July 21, 2014, 03:58:45 pm
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(http://i333.photobucket.com/albums/m387/rebel_cowboy_83/Mobile%20Uploads/Truck%20stuff/IMG_20140720_201222339_zps3stlcnuq.jpg) (http://s333.photobucket.com/user/rebel_cowboy_83/media/Mobile%20Uploads/Truck%20stuff/IMG_20140720_201222339_zps3stlcnuq.jpg.html)
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
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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.
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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.
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The 45-11.