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chrisbigham 10-08-2010 06:08 PM

Rear diff oil change
Is it necessary to drop the fuel tank when I remove the cover from my rear diff. I have a very high pitch whine over 40 mph and suspected my diff oil needed changed. I have changed the oil in the transfer case and removed and resealed the front diff. The oil was low in both and the whine has dropped consideralby. I wish to do the rear but I am not sure I can get to all the bolts without dropping the tank. Any advice? Thanks.

Frango100 10-08-2010 07:49 PM

Re: Rear diff oil change
No, dropping the tank is not necessary. Just lift the car with a jack far enough to have access to the upper bolts. Use some stands to work safe.
If your diff has trac-loc or vari-loc, addition of limited slip additive would be necessary.

StoneCold 10-10-2010 04:13 AM

Re: Rear diff oil change
Yeah, just jack it up and place axle stands on the frame rails. That'll give you enough access.:thumbsup:

kevinswj 10-12-2010 05:29 AM

Re: Rear diff oil change
Just worked on mine this week just put the jack stands under the frame not the axle when the suspension is fully extended it makes it a lot easier to access the top bolts.

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