944 Clunking, mechanics disagree

[poodletart]

Anybody have any idea how a non-mechanic can figure out which mechanic I should trust? One says there is excess play in the axle shaft/Cv joint; the other says I need new transmission mounts to solve a deep clunking from the rear, noticeable only at low speeds.

Are there any tests/ observations anybody would recommend to be sure?

The axle shafts were already out and remanufactured about two weeks ago; the clunking started not long after that, but also after a track day and an autocross day. The mechanic who did the axle shafts is now saying it's the mounts, but another mechanic says the axle shafts are still the problem.

Any suggestions or ideas most appreciated. I'm new at this; just bought the 89 944 (Turbo upgrade).

[number9ine]

Anybody have any idea how a non-mechanic can figure out which mechanic I should trust? One says there is excess play in the axle shaft/Cv joint; the other says I need new transmission mounts to solve a deep clunking from the rear, noticeable only at low speeds.

Are there any tests/ observations anybody would recommend to be sure?

The axle shafts were already out and remanufactured about two weeks ago; the clunking started not long after that, but also after a track day and an autocross day. The mechanic who did the axle shafts is now saying it's the mounts, but another mechanic says the axle shafts are still the problem.

Any suggestions or ideas most appreciated. I'm new at this; just bought the 89 944 (Turbo upgrade).

Are the statements above a result of direct ovservation by the mechanic?

I would suggest you could reproduce any clunking at the axle shafts by jacking the car and moving them by hand. Have you gone under the car and had a look at the transaxle mounts? I know precious little about the 944s but I would say it should help to get an up-close look. I'd check the shafts to make sure that they were mounted properly by the mechanic.

[wvicary]

Check the mounts for excessive movement and separation. Can you better describe the noise and what makes it occur?

[magcuda]

Is this original a 944 turbo? or did you add the turbo?

If so it should have the solid clutch and not the rubber hub clutch

[berny]

Silly question but have you checked the wheels are tight!