U Joint? Loose drivetrain

[Maxwellzer]

My dilemma,

When im on and off the gas there is a lot (noticeable thunk and sound).

For example: When I leave it in 3rd gear, accelerate then decelerate, the moment i come off the thottle I can hear the transmission thunk.

Upon inspection, When I engage the clutch there is a quite a bit of axle wrapping. Furthermore, When I park the truck and leave it in gear, I can move the drive shaft with my hands 1/2" to 1".

The U-joints look fine. No noticible play...when i move the driveshaft with my hands they appear solid.



Any ideas? When i move the driveshaft back and forth all the sound is in the transmission. How much play is alright?



Any thoughts would be most wonderful...



THanks,


Maxwell.

 

[frankserrano]

the audible thunks sound like a bad u-joint to me. does the truck kind of vibrate or rumble a little bit when you're coasting at a higher speed?