Rear end Whine

[bwchevyguy]

I usually have my stereo up loud, but a couple of weeks ago I had a client with me and had it off. I notice a whine coming from the rear end. It's got 127k miles on it. What should I do? Is it about to go out? Thanks for the help.

 

[95Escahoe]

Is it always there or comes and goes with accelerating or coming to a stop

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[bwchevyguy]

Seems like it is always there, but it does seem to get louder or softer at different speeds.

 

[firefighter_2319]

my guess wouls be the bearings and races or gears are wore and not meashing completly

 

[95Escahoe]

Seems like it is always there, but it does seem to get louder or softer at different speeds.

Might be your pinion bearings, my Tahoe made a simaller noise, made it for the first 20k I put on mine when I picked it up, then had the pinion seal replaced cause it was leaking, and you would think they would have checked the fluid level but didn't ended up blowing the rear end they ended up paying to have it rebuilt and been fine since, but ya from what I heard its a pretty common issue on these trucks tho

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[am92]

Yeah sounds like the pinion bearing to me...I'd get that checked out as soon as you can because I let mine go for a while and the metal shavings wore down the gears so they had to be replaced too. $1100 job by the time they were done

 

[bwchevyguy]

Ouch! What should I expect to pay for getting the pinion bearing replaced?

 

[GMCTRUCKS]

On my ext/cab it was my center drive shaft bearing it fooled me big times I thought it was my right side bearing and race it sounded like metal grinding big times.

 

[am92]

Ouch! What should I expect to pay for getting the pinion bearing replaced?

Probably at least $500, it's pretty time consuming to take apart a rear end and then set up the gears correctly

 

[thz71]

i was having that same problem and you could get under there and move the drive shaft up in down so i thought pinion bearing but i tightened up the nut on the yoke and its been fine ever since