I recently (3 months ago)replaced both halfshafts on my wife's '88 Voyager. It had been making a loud popping sound under the left floorboard on left hand turns. All was well until yesterday when the sound returned. It happens usually halfway through a left hand turn. So today I jacked up the car to check the side to side engine centering and lo and behold, grease has flung out everywhere from the inboard joint. I cannot see any rips, tears etc. in the boot and the boot looks clean as well. Has anyone experienced this before? Using the pushing the axle stubs inward method after removing the large hub nut, I noticed the engine/transaxle to be shifted off center slightly to the driver's side (maybe 1/4"). Any suggestions would be appreciated. Thanks everyone.