Has anyone who put a lift under their 80 encountered the rear seal on the transfer case blowing out frequently? I (and Hltoppr) threw a lift (OME Heavy) under my 80 and on the 250 mile test drive home it blew the seal. No problem, new lift, new angle on the rear driveshaft and an old seal usually will cause a failure but I have a new one in now and after about 600 miles it is leaking again. I have noticed some vibrations at highway speeds since the lift but nothing that seemes to cause concern.