Advice needed: drive terrain noise
#1
JK Enthusiast
Thread Starter
Advice needed: drive terrain noise
Recently I have noticed a high pitched harmonic whine at 70mph. As soon as ilet off the gas it goes away. It is def tied to vehicle speed and not engine speed. I noticed last week when working on the Jeep that the rear driveshaft is slinging grease, however i asked the advice of a mechanic next to my work that works on truck/humvees and he said it sounded more like a ring/pinion issue.
Any thoughts? More important what would be the damage in time/hours? Im hoping for just the DS as that is a simple/cheapish upgrade.
Thank you for your help!!
>> I have the Rancho 4" sport lift on stock DS and unfortuanly rarley go offroad
Any thoughts? More important what would be the damage in time/hours? Im hoping for just the DS as that is a simple/cheapish upgrade.
Thank you for your help!!
>> I have the Rancho 4" sport lift on stock DS and unfortuanly rarley go offroad
Last edited by DanNEBTD; 10-01-2013 at 02:39 AM.
#3
JK Enthusiast
Thread Starter
Im sorry for not clairifying . . . It is the rear driveshaft that is slinging grease at the transfercase side.
>> fixed OP
>> fixed OP
Last edited by DanNEBTD; 10-01-2013 at 02:39 AM.
#5
JK Enthusiast
Did you have gears installed recently? The drive side of the R&P could be set up improperly and the coast side is OK? Also I have seen pinion bearings make this noise. Just a thought.
#6
JK Enthusiast
Thread Starter
gears have 20k on them . . i changed the diff fluid this weekend though and there was def. water in there as the fluid was a light brown and more of a water like consistency. I'm beginning to think my rear gears are f'd and i guess my next step should be to have them checked out.
#7
JK Enthusiast
gears have 20k on them . . i changed the diff fluid this weekend though and there was def. water in there as the fluid was a light brown and more of a water like consistency. I'm beginning to think my rear gears are f'd and i guess my next step should be to have them checked out.