Q: Whining from transmission to rear end area 2007 Chevrolet Silverado 1500

asked by on

I've had a whining sound accumulate over the past year or so in the transmission to rear end area. The transmission shifts smoothly up and down. However, i do randomly hear a light growl noise when the transmission downshifts, but its not bad at all. I've done some simple test to try and isolate the issue, but I'm second guessing myself. I've gotten the truck up to 50+mph while it whines, and taken the truck out of Overdrive into Nuetral, and the whine goes away. The whine comes back once placed back into Overdrive gear. I recently replaced the rear end differential ring gear bearings because I spun one. The whining started prior to the rear end bearing issue though, but I'm not ruling out the pinion bearing because I did not change it out. Is it possible that the whining goes away when I take it out of gear because there is no torque being applied to the read differential (if this is a rear end issue)?

Thank you, Blake Tumlinson

My car has 175000 miles.
My car has an automatic transmission.

Hello - your intuition is correct. The ring and pinion gear are severely worn, and will need to be replaced (w/all new ring and pinion bearings) to eliminate the "noise under load" you notice. Setting up a ring & pinion gearset and bearings requires specialized skills and equipment. Check with your local auto machine shop for reliable references and sources for this task.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Whining from transmission to rear end area 2007 Chevrolet Silverado 1500

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Q: Cold engine problems.

This may be related to the idle air control module/valve, which is a component that monitors the amount of of air intake at idle as it is mixed with the fuel prior to being injected into the motor. When this...

Q: My headlights went out completely 2006 Chevrolet Impala

Hi there - check the fuses and headlight relay (behind the fuse box) first. These are the most likely failed components causing a lack of headlight function. If you would like assistance, I recommend a headlight system inspection by a...

Q: Car clicked when trying to start it so I changed battery and now it just shuts off when I try to start it

If the vehicle will not start with a good battery then you need to see if the theft system is activated? Try to hold your key FOB next to the push to start button before pressing button to see if...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.