I agree
Originally Posted by
steveh
From the info you have given, sounds like you have a clogged breather tube which can cause a oil leak. Please try clearing out the breather tube. You shouls be all set
The breather tube is typically located on the top side of the diff with the appropriate fitting and is plastic. A metal tube may be present but that's for the braking system.
As the oil heats during normal use, it expands causing the a buildup of pressure within the case. As the oil cools whist parked, air is the sucked through the tube to maintain the pressure differential [1 atm]. As the above poster presented... should this become clogged, the pressure builds up and finds the path of least resistance. LR typically placed the outlets of the tube high up on the body to combat these issues as well as wading through high water.
Cheers,
1990 RRC, 3.9L, AUTO "Willow Pond" (Sold)
1996 D1, 4.0L, AUTO "Lucas"
1999 RR, 4.0L, AUTO "Belle" (Sold)