dr kenneth e garchow

i attempted a search, but got few matches.

i know you can unhook the drive shaft from the transmission, but can you also unhook it from the diff. i want to see how it changes the car to not have the shaft turning @ all (see if it reduces the vibration in the shifter).

Tour18

I'm watching for the responses on this one, Doc...

Adrian

Dear Ken,
I am surprised this question has not been answered. The answer is "no" in the practical sense. Anything is possible of course if you want to sink some money into it but for the purposes you want the answer is a straight no. Why? Differentials and viscous couplings are designed to be driven and loaded. The differential may not enjoy having a great big hole in it and the front side of the viscous coupling may also overspeed due to no load. The fluid will drag the unloaded section around very easily. I would also suspect you would increase vibrations in the drive train rather than reduce them. However please understand that this is only theory because it is not something that is done so the experience level is very low.
Ciao,
Adrian
964C4

dr kenneth e garchow

i was told by a top flight porsche race tuner to try this to check for a bent drive shaft.

wanted to get more input before i crawled under the car and start unbolting things.

will stay tuned

thanks

Steve Weiner-Rennsport Systems

Doc:

"Top flight Porsche Race Tuner" told you correctly.

When we run these cars on a chassis dyno, the drive shaft is unhooked at the front of the tranny.

No worries,...for short distances.

(If ones wants to make a 2WD car from an AWD one, the VC as well as the driveshaft and front diff/axles should be removed)

dr kenneth e garchow

thanks for the info