I have never seen this on any vehicle....
When I bought my '99 LX with 308K, the front pinion seal was leaking and the PO mentioned something about it, and I suspect he replaced it. I didn't pay much attention, but later replaced the seal again with OEM, and I still had 90wt dripping off the diff housing. Sigh!
I then removed the factory diff vent and installed my own free-breathing diff vent with a small fuel filter on the end. Still leaked - so diff pressure was not a cause (which it has been on various Land Cruisers of mine)
Upon studying the leak more closely, it was at the perimeter of the seal, and not where the pinion flange runs on the seal. To combat this problem. the OEM seal has a built-in squishy rubber around the edge to seal to the casting, but it still did not seal.
So, I bought another OEM seal, and while I had the seal out, I ran my fingernail around the sealing surface of the casting, and found no scratches of note, but of course, visibility is poor. I assume that I or some gouged the casting while using a seal puller. Who knows.
This time, I applied orange (gear case) FIP to the casting opening and the seal itself, and tapped it in, and the leak has stopped (last photo was from this morning). Anyway - FIP made it work this time. And because we all love photos....
When I bought my '99 LX with 308K, the front pinion seal was leaking and the PO mentioned something about it, and I suspect he replaced it. I didn't pay much attention, but later replaced the seal again with OEM, and I still had 90wt dripping off the diff housing. Sigh!
I then removed the factory diff vent and installed my own free-breathing diff vent with a small fuel filter on the end. Still leaked - so diff pressure was not a cause (which it has been on various Land Cruisers of mine)
Upon studying the leak more closely, it was at the perimeter of the seal, and not where the pinion flange runs on the seal. To combat this problem. the OEM seal has a built-in squishy rubber around the edge to seal to the casting, but it still did not seal.
So, I bought another OEM seal, and while I had the seal out, I ran my fingernail around the sealing surface of the casting, and found no scratches of note, but of course, visibility is poor. I assume that I or some gouged the casting while using a seal puller. Who knows.
This time, I applied orange (gear case) FIP to the casting opening and the seal itself, and tapped it in, and the leak has stopped (last photo was from this morning). Anyway - FIP made it work this time. And because we all love photos....
