After 2 attempts to fix leak by Toyota dealer replaced pinion seal twice, leak still persists. Was advised, today, by dealer that he thinks leak is caused by clogged vent which would require 15 hours labor removing transfer case to get at the vent. He thought vent being clogged might cause high pressure causing leak through seal.
Very disappointed that this may be the cause with vehicle having only 69,000 miles on speedo. Anyone else had this problem?