Hey guys, this is my first post. I just picked up a 1994 f150 4x4 5.8 auto and when put in gear it clunks and also when it shifts it will clunk. I have two short vids attached that hopefully will help with a diagnosis. The first vid is my wife putting it in gear and the second vid is me moving the driveshaft by hand. The universals are good and tight. Thanks for the help. Mike


http://www.youtube.com/watch?v=Ozueee2zEyw

http://www.youtube.com/watch?v=UCBfz7D96DI

 

Should have added that the trans shifts good and pulls great. Also if I start out in 2nd it dont seem to be as bad or sometimes even there. Thanks Mike

 

Also how do I know what rearend is in the truck? Thanks

 

Its an 8.8 and theres a code on the door for the ratio. I'd pop the cover off and took a look, probably gonna need a rebuild.

 

probably bad pinion gear bearing ... dont drive the truck like that or you will be missing teeth in the ring and or pinion gear...i would rebuild the whole rear end (make shure to align the ring and pinion gear wright or you will hear a whining..