Engine/clutch vibration after LT1 T56 swap- possible fix
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Joined: May 2003
Posts: 539
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From: Huntsville, AL
Car: 87 GTA, 88 GTA, 92 TA, 72 RS SS
Engine: 350, 350, 305, 396
Transmission: T56, 700r4, 700r4, T56
Axle/Gears: 3.42, 3.23, 3.23, 3.73
Engine/clutch vibration after LT1 T56 swap- possible fix
Just wanted to drop this GM document I found out on the internet in regards to engine vibration with 6 speed transmissions. The document is written for dual mass flywheels used in Vettes but is applicable for LT1 T56 flywheels as well.
I just finished my T56 swap and had a horrible vibration at 3800+ rpm's. I was able to get rid of 98% of the vibration by by applying the weights to the flywheel per the document.
Hopefully this will help someone in the future as it did for me.
I just finished my T56 swap and had a horrible vibration at 3800+ rpm's. I was able to get rid of 98% of the vibration by by applying the weights to the flywheel per the document.
Hopefully this will help someone in the future as it did for me.
Last edited by battman; Mar 1, 2017 at 09:36 AM.