My 1987 90 has been leaking oil from the rear axle ends and when I previously asked this question it was suggested it was the outer oil seal that had gone probably due to pressure build-up inside the axle caused by a blocked breather. Anyway, I eventually got one hub off (took all afternoon!) only to find the seals look OK and wouldn't cause the oil leek anyway (the axle is obviously after 22S08284B) only a leek of hub grease. As there does not appear to be a seal on the actual drive shaft what stops oil leaking out of one of these axles/diffs, the end cap? the ones on the
90 are a bit old and loose it's true. I have changed the breather for a new one BTW, the old one was only partly blocked.- posted
18 years ago