[exspwr]

"03" F250 7.3 Super Duty 142,000miles Bone Stock. 3.73 Limited Slip.
Starting to notice slop in the drive shaft, Also vibration is noticable from Start up to 20 MPH. Seems to be in the rear end. Don't seem to detect any slop in U Joints. When I rock the truck front to back, I see movement and feel a clunk and see slight movement in pinion area of rear end. Any Ideas? Yes, I have used the search engine for simular issues. Thanks...

 

[MADVAN]

Try this.
http://www.eurekaboy.com/f250/slipjoint.htm

Bill

 

[exspwr]

Thanks, We have already checked this area. Think its at the rear. Thanks For the Fast reply.

 

[MADVAN]

[ QUOTE ]
When I rock the truck front to back, I see movement and feel a clunk and see slight movement in pinion area of rear end.

[/ QUOTE ]

U answered your question.
Time for rebuild.

Bill