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post #1 of (permalink) Old 08-04-2001, 12:55 PM
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need help finding gear ratio

My father in law blew out the rear end in his 86 burb.He gave me all the numbers that he could find on the axle housing
and the ring gear.Now I need to find somewhere with the codes so I can try to get a new one with the right gearing.
If anyone can help me out it would be greatly appreciated.


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post #2 of (permalink) Old 08-04-2001, 01:40 PM
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Re: need help finding gear ratio

do a search for GEAR RATIO in thelast 2-3 weeks, I'm sure you'll find what your lookin for.


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post #3 of (permalink) Old 08-04-2001, 03:12 PM
 
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Re: need help finding gear ratio

<font face="Comic Sans MS">Just tell us what the numbers off the ring gear were...
We'll tell you exactly what ratio you have. What weight rating was the vehicle was it in? 1/2 ton, 3/4t, etc...??? Look for a number on the ring gear like 41:10 (which coincidentally in this example is 4.10:1 gear ratio). If you can't do that, just count the teeth on the ring gear and divide that number by the teeth on the pinion gear. You'll get the same result as you would if you found the number stamped into it. [img]/wwwthreads_images/icons/crazy.gif[/img] How'd he blow out the rear anyhow? Just wondering...

As to what rear it was, just count the number of bolts that hold the cover on. 10 bolts and you'll just ask for gears from a 10 bolt rear, 12, 14... Keep in mind that there's 2 flavors of 14 bolt, but I doubt there's many people out there who could destroy the R&P on either of those (at least not the bigger one), well not without tryin' really hard anyway.</font>

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post #4 of (permalink) Old 08-04-2001, 03:34 PM
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Re: need help finding gear ratio

Hey sandman,
The ring gear in my 86 burb has a "41" stamped on it.

Does that mean it has a 4.10, or is it also dependent on what is stamped on the pinion gear?

Thanks,
Shane Bevel

The Roanoke (VA) Times Photo Department
1986 3/4 ton 4x4 'Burban 5.7L Vortec Powered
2000 Specialized Rockhopper FSR
[img] http://people.unt.edu/~shaneb/front.jpg [/img]
post #5 of (permalink) Old 08-04-2001, 03:34 PM
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Re: need help finding gear ratio

Hey sandman,
The ring gear in my 86 burb has a "41" stamped on it.

Does that mean it has a 4.10, or is it also dependent on what is stamped on the pinion gear?

Thanks,
Shane Bevel

The Roanoke (VA) Times Photo Department
1986 3/4 ton 4x4 'Burban 5.7L Vortec Powered
2000 Specialized Rockhopper FSR
[img] http://people.unt.edu/~shaneb/front.jpg [/img]
post #6 of (permalink) Old 08-04-2001, 05:05 PM
 
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Re: need help finding gear ratio

<font face="Comic Sans MS">It should have a : or / and another number after the 41 if it's telling you the ratio... Both numbers would be on the ring gear. I've personally never seen anything stamped on a pinion gear, but I've only seen a few... [img]/wwwthreads_images/icons/crazy.gif[/img]</font>

Tim "Sandman"

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My May Column
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post #7 of (permalink) Old 08-04-2001, 06:08 PM
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Re: need help finding gear ratio

Just talked to the dad-in-law.Turns out he gave me the wrong #s.He also figured out that it has 3:73s in it.Thanks for all the help guys!


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