What type of tranmission mounts are found on the sc300 are they urethane or solid or some composite and have any of you had any trouble with these? I ask because I have a gremlin in the drive-line. I have thus far replaced the carrier bearing and all fluids (diff and rear-end) and post this there has been a noise and knock under the trans tunnel. I thought it had dissapeared and after a day of driving I still hear it on half throttle take offs only. The shop insists that this is in the rear-end, yet I find the noise and contact happening under my right arm! To me the only thing left is the trans mounts. If anyone has any input I am open to additional troubleshooting.

 

center drive shaft bearing and mounts.