Gear noise

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Sterling

Sterling

FABO Gold Member
FABO Gold Member
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Have a Dana 60 that is making a gear wine, from 40 mph to 60 mph, only under load. As soon as you lift off the accelerator, no noise. I think that it is the gears themselves but am curious if anyone has had the same experience?
 
Incorrect pinion gear depth. You might check the pinion nut to see if it's backed off.
 
Thanks, I did check the pinion yoke and u joints earlier this year. And saw nothing obvious. I will pull the cover and check the backlash and pattern this winter.
 
The backlash generally doesn't cause a whine. Just a clunk. With the cover off, you can measure both. Just keep in mind that if the pinion is not deep enough, that will also increase backlash, so if the backlash is out, don't stop measuring. It is probably out because of the pinion gear.
 
Could be worn pinion bearings, was it always quiet and just started?
 
Is this a new build or is there lots of miles on it? If the pinion is too deep u will have a whine on acceleration. Kim
 
Last edited:
Pull your ring gear back into alignment with new Carrier Bearings and Races, then re-set the backlash.

No more whine.


☆☆☆☆☆
 
It is not a new build, and not one that I did. It is a narrow Dana 60 with a I think a Powertrax sure grip. The gears were changed before I got the car, and since I have it , has always made the wining noise on acceleration. This winter I will pull the cover and check the pattern and backlash. All the rears that I have set up, I have never ran into this issue before. I would hope that new bearings were installed with the new gears, but not positive. The u joints and yoke feel ok .
 
Sterling said:
It is not a new build, and not one that I did. It is a narrow Dana 60 with a I think a Powertrax sure grip. The gears were changed before I got the car, and since I have it , has always made the wining noise on acceleration. This winter I will pull the cover and check the pattern and backlash. All the rears that I have set up, I have never ran into this issue before. I would hope that new bearings were installed with the new gears, but not positive. The u joints and yoke feel ok .
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Ok so it was set up wrong from the sound of it. If it's been driven for a good bit, you may be stuck with the noise no matter what you do unless you change the gears out. Once they wear in in whatever pattern they're in, it's too late.
 
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