Update: After about 5,000 miles, the thump gradually returned. I repeated the greasing procedure and it worked again. Looks like I'll just have to continue doing this approximately every oil change.
100% effective solution - arkie 6 fix
I have a 2008 4x4 V8 4Runner with 32,000 miles and have been experiencing the drive shaft thump issue for about the last 25,000 miles. I have tried several times in the past to pump grease into all the zerk fittings along the drive shaft with mixed results...
