okay so I did my own 4.10 install back in the begining of september and I havent had any problems in terms of whine or noise so i haven't really checked it out since. I put the car on stands for the first time since the install today and I noticed that there was a thin coat of oil on the bottom of the diff cover. Then I noticed that there was oil on the downpipes around the pinion flange. Then I saw wet spots at the end of the DS tunnel. All of the oil seems to be in a ring around the pinion oil seal, as if it's spraying out as the driveline spins. I think it could be the pinion oil seal leaking. I replaed the pinion seal when I did the gear install so I'm wondering if I damaged the seal when I installed it. I've put about 2,000 miles on the car since the install so if it is the pinion seal leaking, it's a slow leak. What are yall's thoughts?





It's kind of difficult, but you can see the oily film on the DS tunnel and on the downpipes and how it is directly out from the oil seal. Any thoughts are appreciated.