Ok no luck on the a/c, I read through mayfair's post and that gave me some ideas. How about this one. I've notice a squeak coming from the rear end area during acceleration, but if I let off the pedal and coast the noise stops.Are there any grease point in the area? I got under there and looked and saw some leakage where the drive shaft goes into the diffrential. Is it hard to replace the seals there? 170,000 mi differential grease changed 18,000 mi ago.


03 2500 CTD 4X4

 

To change the pinion seal is easy to do if you "half ***" it. To do it correctly you have to pull the diff and check tooth contact pattern ect ect. To do it the other way ( I've done dozens this way and they have over 200k on the diffs since the no prob) you pull the dline/ ujoint, get an impact and run the yoke nut off, pull the yoke and seal then go back together with new parts.

 

thanks for the info