I recently had 4w lo assy replaced on my tranfer case. A few days later the tail piece started leaking from the rear seal. I took the truck back and had them R/R the seal. About a week later the seal is once again leaking. I am frequently checking the tranny level ands I have had to add about 1/2 a quart.Any ideas or special way to repair replace this seal so that it does not leak. Thanks ???

1995 Dodge 2500 CTD 4WD Auto Ext Cab Long bed stock

 

There should be a bushing in the tail piece check and see if the tail shaft moves up and down by hand. Have them check that the old seal didn't groove the output shaft.