bad output shaft?

[TOOLOW91]

sorry for the long post and bad grammer and sentence puntuation but just stick with me fellas as i am a bit fustrated right now


ok so i had posted a question about the reAr of my car a while ago, and was told to check a few things. i went down to the beach yesterday as the weather was gorgeous and of course still getting the thunk noise i had described it got worse and i can feel it everytime the tranny shifts(auto),

so now i jacked the car up today put it in N so the drive shaft was free, and I moved it just enough to shift the play in it and i hear the thunk i am getting when i snap on and off the pedal or take off abruptly and also now when upshifting on the highway. Yesterday i also felt for the first time my car didnt slip the revs didnt shoot up , it just felt like there was no output to the rear for a split second and then it came back , like i said the trans never left gear at all.

so what do you guys think bad output shaft?

00 gt, 86-k,automatic

 

[joshjwc9]

Are there any other symptoms you have been feeling? Slipping? Shifting too hard, Too Early, Too Late? etc..

I would suggest a fluid change, check the D/S for proper balance or get a AL one, and replace your UJoints while your at it. I had mine seize up/break apart from the grease getting all dried up in the Ujoint.

The thunking sound might also be the D/S bolts not being tight enough..

Its

 

[TOOLOW91]

i have the papers upstairs from the original owner so ill check on the last tranny service , it doesnt shift to hard or out of the ordinary and ive never had it slip once since i have it and it was owned and maintained by a 75 yeAr old women before me so you get the picture there, she was maticulous. like i said the sound it more concentrated toward the rear of the tranny front of the d/s .

 

[TOOLOW91]

tTt anybody else got any ideas

 

[wmburns]

I suggest looking at two possibilities. U-joints and differential bearings.

U-joints are well known to make a “clunking” sound when the drive line goes from “coasting” to “driving”. Usually, it is easiest to hear the clunk when shifting from reverse to drive.

It could also be in the rear end. Worn bearings supporting the pinion gear could allow the lash to get out of tolerance. This sometimes can be heard as a tick when switching from “power” to “coasting”.

I had a problem in my differential making a ticking noise that varied with vehicle speed. I ended up having a complete bearing kit installed. An inspection of the old parts revealed a worn rear pinion bearing.

Obviously, a lot of spirited driving can lead to shorter life of U-joints and differentials.

 

[TOOLOW91]

thanks for the reply i am a very spirited driver , so im sure that didnt help that it got worse since ive had the car.. im gona try the u joints first because its cheapest and easiest... thanks bro