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rear end howling

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Old 04-10-2007, 10:45 AM
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Default rear end howling

installed new gears in january. did everything correctly. broke them in accordingly to factory specs. 4 months later, i began to hear the howl get louder n louder. it did have a small howl, which is normal for new 373's. but it was noticeably loud now. i am going to take the girdle off to inspect. can anyone give me info on why it may do it. by the way i think it still has fluid cuz i did not see any residue around the rear end at all or any fluid on the floor.

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Old 04-10-2007, 11:10 AM
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does the noise go away if you get on the throttle or off?
Old 04-10-2007, 11:13 AM
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noise goes away after pressing the throttle. let go of gas and it begins to howl.
Old 04-10-2007, 11:31 AM
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your backlash is not deep enough

if your noise continued when you pressed the throttle the gears are in too deep

if your noise goes away when you press the throttle and continues when you let off your gears are not deep enough.
Old 04-10-2007, 11:38 AM
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thnx. when i did the paint on the teeth, the it was all in the center of the tooth. i thought that was were its suppose to be. i will have to reshim it again.
Old 04-10-2007, 12:00 PM
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The backlash is measured using a dial indicator. The pattern only indicates the pinion depth. You should get the backlash within spec before finding the right pattern. Once the pattern is acceptable, recheck the backlash again.




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