Buzzing noise in drive train
Thread Starter
Burning Brakes
Joined: Aug 2001
Posts: 877
Likes: 43
From: Surprise AZ
Buzzing noise in drive train
Recently I had a shop replace my stock clutch with a new LS7 clutch and steel flywheel. The pilot bearing, slave cylinder and throw out bearing were also replaced. The torque tube was rebuilt with OEM bearings and couplers. The transmission was rebuilt including all new bearings, input shaft and cluster gears. The differential had new C6Z clutch packs installed. A remote bleeder was added to the slave cylinder. The engine rear main seal and plate were replaced too. I already had a TMODCUSTOMS lower shifter box and a C6 upper shifter installed. The shop relocated the two flywheel weights from the original LS6 flywheel to the new LS7 flywheel. I have driven the car about 400 miles since this job was completed.
i am experiencing a buzzing rattling sound coming from the shifter at 3,000 rpm and above. It is in all gears and ONLY under a load. It does NOT do this in neutral with the car parked. Which leaves me to believe it is not engine or clutch related. I believe the noise is transmitting from the drive train and is not caused by the shifter itself. The tech says he marked the torque tube and reassembled it accordingly.
I'm looking for some suggestions and help.
Thank you!
i am experiencing a buzzing rattling sound coming from the shifter at 3,000 rpm and above. It is in all gears and ONLY under a load. It does NOT do this in neutral with the car parked. Which leaves me to believe it is not engine or clutch related. I believe the noise is transmitting from the drive train and is not caused by the shifter itself. The tech says he marked the torque tube and reassembled it accordingly.
I'm looking for some suggestions and help.
Thank you!
Drifting
Joined: Mar 2015
Posts: 1,421
Likes: 302
From: CSRA, SC
There's a little balancing washer bolted to the driveshaft if I remember correctly. Any chance that got lost? Kinda spitballing here since there should be no reason for it to be removed. Can you *feel* the vibration causing the sound?
Thread Starter
Burning Brakes
Joined: Aug 2001
Posts: 877
Likes: 43
From: Surprise AZ
The vibration feel in the shifter is the same before it buzzes and while it is buzzing. It does not increase when it starts to buzz.
Thread Starter
Burning Brakes
Joined: Aug 2001
Posts: 877
Likes: 43
From: Surprise AZ
Does the rear linkage flex joint have a rubber cover over it? I wonder if that flex joint could be the problem.
