So i thought my u joints had to be replaced and turns out they were fine but i did notice my front drive shaft has a lot of play and im not sure if it needs a longer or adj shaft ? I have a RC 3in lift

 

ur shaft is adjustable...my front shaft vibes bad and my u joints are fine i think its double cardan ball thats going bad

 

Where the greese fitting is should it have a lot of play or should it be stiff ?

 

The slip part of my front driveshaft can move up and down.. not a whole lot but just enough to move and it makes me wonder if that would be causing problems for me. i got a refurb front shaft for my hack n tap and its solid. makes me question my current front shaft.

Sorry to hijack your thread but i figured we might both be getting answers.

 

it should not have play in it. take the shaft off and drive it. if the vibes are there, you know the problem is.