how to find gear ratio on dana 44 front

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  #16  
Old 12-04-2015, 11:29 AM
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Would you be able to look up my gears?

Originally Posted by Ford6.02005
After 10 years working in a 4x4 specialty shop and saving a set of Spicer books from that era I still look them up the old fashioned way-you may want to try www.spicerparts.com and navigate your way through their site...or If you post your BOM#'s I will be glad to look them up!
I have a Dana 44 from a 79 bronco that I'm using for a project. I was told it has 3.50 gears but I wanted to be sure of it. My Bom tag says 610067-2
 
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Old 12-04-2015, 07:32 PM
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Just count the teeth on the ring and pinion. You can probably just count the ring, and spin it a couple times and figure it out.

Combo's listed here:

Richmond Gear Dana Ring & Pinion Sets | Richmond Gear

If the Bronco had 3.50 gears in the Ford 9er out back, the closest Dana ratio is 3.54, so that's what you are looking for, at least initially.
 
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Old 12-04-2015, 11:39 PM
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Ratio Formula

Originally Posted by Jacksalander
I have a Dana 44 from a 79 bronco that I'm using for a project. I was told it has 3.50 gears but I wanted to be sure of it. My Bom tag says 610067-2
Using the 42/12 shown on the ring gear the ratio comes out to 3.50...
 
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Old 12-05-2015, 12:50 PM
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Originally Posted by Ford6.02005
Using the 42/12 shown on the ring gear the ratio comes out to 3.50...
The last two numbers on the ring gear show the ratio? What's the equation for finding it?
 
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Old 12-05-2015, 12:51 PM
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Originally Posted by Jacksalander
The last two numbers on the ring gear show the ratio? What's the equation for finding it?
Never mind. That was a dumb question.
 
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