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Need help with finding 3.92 replacement gears

Old Apr 25, 2011 | 11:49 PM
  #11  
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Mine was howling too and it ended up being the pinion bearings, gears were fine. Remember the stock gears are the strongest you can get. I had my clutch pack retaining clips break so I replace the stock LSD with a detroit tru trac and had to use all new bearings etc but kept the stock gears. If your in there then just replace the LSD so it won't grenade your new gears if you get them. IDK if its true though but I just have heard that nothing compares to the stock gears in your truck.
 
Old Apr 26, 2011 | 09:14 AM
  #12  
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Originally Posted by kx250frider617
Mine was howling too and it ended up being the pinion bearings, gears were fine. Remember the stock gears are the strongest you can get. I had my clutch pack retaining clips break so I replace the stock LSD with a detroit tru trac and had to use all new bearings etc but kept the stock gears. If your in there then just replace the LSD so it won't grenade your new gears if you get them. IDK if its true though but I just have heard that nothing compares to the stock gears in your truck.

read this all the time. the stock gears are strong gears and you don't see too many fail unless they get chewed up by the clips or people abuse them. but Mopar sources them from about four companies. i know yukon is one and richmond is another. they are the same gears that come out of many aftermarket gear companies. Mopar as a company makes very little anymore, most parts and supplies are outsourced.
 
Old Apr 26, 2011 | 10:20 AM
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The strentgh of the gears has nothing to do with Mopar. It has to do with the metals that were used. Richmond for example has race gears and street gears. Both of which are a softer compound than any stock gear in the Ram.
Why the soft compound? So they don't break on launch. they need some softness to give. So, to say that OEM gears are the strongest is not true. They are the "hardest", not the strongest.
Hard gears wear less and are mainly for highway use but are brittle. Buying aftermarket gears, you need to be weary of the compound being used as it makes a difference in ride ckomfort as well as NOISE. This is why mechanics say it's common for noisey Diffs, it's because they are used to racing metals that are softer and yes tend to make a little more noise than OEM Harder gears. I'm not saying they are brittle where they will break, but the harder something is the more brittle it is. Which means it has no give. Which means snap. Like the guy that posted up about his snapped pinion gear. Don't get me wrong, you DON'T want a soft gear compound. You want OEM. I am just clarifying.

I know AAM American Axle made gears for all 3 companies. How much at each company I don't know.


This thread is over a YEAR OLD. Thread closed.
 

Last edited by dirtydog; Apr 26, 2011 at 10:25 AM.


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