Left side differential seal leaking again a month after replacement. (1 Viewer)

[Kamran Khan]

@2001LC I have replaced left side differential seal a month ago and it was holding up fine, yesterday after inspection, I found it leaking again. What are your thoughts on it?
How far in the oil seal need to go inside the differential tube, I was jacking up the car on the right side to replace some bushing, could it be tilting that cause the diff oil to come out on the left side?

 

[excessive]

are you using OEM parts?

 

[Kamran Khan]

are you using OEM parts?

Seal is genuine, bought it from partsouq. I am thinking maybe the diff breather is clogged but I haven't inspected that yet.

 

[OEMGUY0720]

Leak/weep after seal replacement is ‘usually’ due to installation error. Other factor cam be bent axle which I hope is not the case. And yes a clogged differential breather can create pressure in the axle housing that can lead to seal failure.

 

[Kamran Khan]

These are the pictures of the old oil seal. I believe the older oil seal wasn't seated properly that's why it was leaking and maybe I have made the same mistake when installing new seal. I wasn't sure how far in I need to push the seal.

 

[excessive]

that does look too far "pushed in", but I haven't done this job in a while.
another thing is there could be a wear mark on the shaft itself, where the old seal was sitting. you could try to install a new seal slightly less deep so the seal rides on a different part of the shaft

 

[baltistyle]

Seal is genuine, bought it from partsouq. I am thinking maybe the diff breather is clogged but I haven't inspected that yet.

Definitely check this out, the breather. It should always be the first point of inspection for a diff leak, imo.