Richmond 3.42 ring and pinion loud during operation
#1
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Engine: 350 TPI
Transmission: TCI Street Rodder 700r4
Axle/Gears: 3.42
Richmond 3.42 ring and pinion loud during operation
I had to rebuild my differential and a I bought a whole package with yukon posi and a ring pinion set from richmond. The differential is very loud during operation - loud grinding and whining noises from the rear. I am being told that the reason for this is that the cog surface is not smooth, ie it's got a scratched and coarse finish as the result of the machining. I am being assured that the alignment/spacing adjustment of the gears is correct and to the specification.
I've found this post
https://www.thirdgen.org/forums/engi...3-73-ring.html
which pretty much illustrates the cog surface that I was trying to describe.
Is this normal for these gears to be noisy during operation?
Is there a viable workaround? If not can anyone one suggest a set of gears that will assure smooth and quiet function?
I'll be very much obliged for any input
regards
i.
I've found this post
https://www.thirdgen.org/forums/engi...3-73-ring.html
which pretty much illustrates the cog surface that I was trying to describe.
Is this normal for these gears to be noisy during operation?
Is there a viable workaround? If not can anyone one suggest a set of gears that will assure smooth and quiet function?
I'll be very much obliged for any input
regards
i.
#2
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Car: 1986 IROC Z
Engine: 5.0 TPI
Transmission: 700R4
Axle/Gears: 3.23 Posi
Re: Richmond 3.42 ring and pinion loud during operation
I had to rebuild my differential and a I bought a whole package with yukon posi and a ring pinion set from richmond. The differential is very loud during operation - loud grinding and whining noises from the rear. I am being told that the reason for this is that the cog surface is not smooth, ie it's got a scratched and coarse finish as the result of the machining. I am being assured that the alignment/spacing adjustment of the gears is correct and to the specification.
I've found this post
https://www.thirdgen.org/forums/engi...3-73-ring.html
which pretty much illustrates the cog surface that I was trying to describe.
Is this normal for these gears to be noisy during operation?
I've found this post
https://www.thirdgen.org/forums/engi...3-73-ring.html
which pretty much illustrates the cog surface that I was trying to describe.
Is this normal for these gears to be noisy during operation?
A properly-set-up rear end should make no noise at all. Apparently, the unit was assembled improperly with wrong bearing preload/incorrect backlash setup.
The unit will have to be disassembled, and any now-damaged parts replaced, and then properly re-assembled and set up by someone with the skill and special tools required to do the job correctly.
#3
Re: Richmond 3.42 ring and pinion loud during operation
Pinion depth, backlash and bearing preload must be set correctly for the gears to mesh properly. If anything is not set correctly then you will have noise. It's probably not the fault of the gears. It's probably the fault of the person who installed them.
#4
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Car: 1989 Chevorolet Iroc-z convertible
Engine: 383, holley terminator efi
Transmission: T-56
Axle/Gears: stock 10 bolt w/ 3.73
Re: Richmond 3.42 ring and pinion loud during operation
I am running Richmond gears in my camaro and they are pretty quiet. There's no noise coming from the rear of my car at any speed. I agree with the other posters, I would have the rear end looked at and would have everything measured again. Better now then before any damage is done.
Last edited by IROCUDREW; 05-31-2019 at 10:11 AM.
#6
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Re: Richmond 3.42 ring and pinion loud during operation
Not necessarily, Fix it asap. Richmond gears are a little noisier than oem or US gear, however not as you are describing here.
#7
Re: Richmond 3.42 ring and pinion loud during operation
With 1000 miles on them and the noise that he is describing, I don't think there is much hope for making them quiet. It's possible, but not likely.
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#8
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Engine: 350 TPI
Transmission: TCI Street Rodder 700r4
Axle/Gears: 3.42
Re: Richmond 3.42 ring and pinion loud during operation
Guys!!!
Thank you for your comments
I'm going to get a new set of gears and try to set it up again
hopefully this time round it will be installed properly
regards
i.
Thank you for your comments
I'm going to get a new set of gears and try to set it up again
hopefully this time round it will be installed properly
regards
i.
#9
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Re: Richmond 3.42 ring and pinion loud during operation
Use oem, US Gear or Yukon instead of Richmond. Make sure you use GM posi additive. Use Lubrication Engineers oil if you can.
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