Gear hum after install - JeepForum.com

 
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post #1 of 5 Old 04-28-2013, 07:58 PM Thread Starter
Roodki
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Gear hum after install

I just had Alloy usa 4.88's installed in my TJ, d30 and d44 by someone who I work with who has set up many gears on his 4x4's and race cars, but it seems to have a slight howl when decelerating. Not too loud, but I can hear it. I have driven the thing about 50 miles home from his place. Is this normal? If not can this be readjusted?

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post #2 of 5 Old 04-28-2013, 11:51 PM
DallastheJeeper
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The biggest difference between expensive gears and cheap gears is how precisely/smoothly machined they are. Alloy usa are cheap gears so they will make more noise than the well machines oe spicer gears. A slight howl is normal but I am not hearing it over the internet. If its loud definitely check the lash on both and if you have a scope peak in and check on the gears. Me and and a few of my buddies have installed many sets of usa standard gears which are also cheap and they do make noise but its not really loud.

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post #3 of 5 Old 04-28-2013, 11:56 PM
cavscout187
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Check how deep the pinion is set not just lash if its to deep the can howl pretty laud
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post #4 of 5 Old 04-29-2013, 05:05 AM Thread Starter
Roodki
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Yeah, it is pretty slight. With the radio on quietly it is unnoticeable. I just want to make sure it is not going to get worse.

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post #5 of 5 Old 04-29-2013, 05:27 AM
cavscout187
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If its set wrong they can wear faster and get laud
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