Rear-end seal?

7demon2 said

check the axle vent also. if it is clogged up then pressure can build causeing it to leak from the pinion.....

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Where is the axel vent located on an 8 1/4? I have seen a diagram showing an 8 3/4 with it on the top of the axel/drivers side. Is this the same for the 8 1/4?

Thanks