shern

iTrader: (6)

Team

Recently picked up a 1995 SC300 auto with 205k miles. There is a vibration in the driveline upon accelerating from a standstill up until about 6-7mph. It feels as if it is coming from the torque converter and/or propeller shaft. After getting past 6-7mph, it is buttery smooth in all gears. Transmission shifts perfectly.

Any suggestions? First auto SC I've owned. I plan on dropping the fluid with a few refills next to rid the old fluid.

Thanks ahead of time. I would imagine the same question could be proposed to the GS boys also.

DeanBird

Wow!! I drove my wife's 1995 SC 300 today and it does the EXACT same thing. I was getting ready to post the same question. Thanks for the excellent explanation. I'm watching with great interest to see what replies there are. Thanks!!

bangdangvn

Mine did the same thing, thought it was the rear diff but turn out to be the driveshaft U joint about to snap...not sure how that was done with stock everything...

shern

iTrader: (6)

Was it the u-joint or guibo (flex coupler) ?

bangdangvn

I thought about the flex coupler from OLT's thread about clunking noises. But my mechanic insisted it was the U joint and he was right, I saw it on the lift. Your best bet is to go to an transmission place and have them diagnose the problem, but I think you're well qualified to do your own stuff from reading your posts for the past 3 years.

shern

iTrader: (6)

Thanks.

Diagnosis for me is 80% of the work. Dropping trannys and propeller shafts is quite easy. I haven't looked underneath the car yet but will inspect the u-joint closely.

NemeGuero

iTrader: (15)

yeah i bet its that rubber thing in the mid section of the driveshaft thats all worn out.

AngrySC3

Was looking around the threads and caught yours, I' m also having that problem too thought it was the stock transmission going bad with swap engine. I'll also will let you guys know if this is the case.

DeanBird

Thanks, everyone!!

The shop had the driveshaft rebuilt with standard u-joints and a new coupler. Now it's serviceable and smooth!!