Good evening patient friends,

I am getting ready to install back my NA flywheel that has been lightened by taking off all perimeter material (friction side) almost to the ring-gear and 2.5 mm. away from the pressure-plate bolt holes.

The flywheel has been balanced and I got plate-to-flywheel 12.9-grade bolts that are 25 mm. long instead of the stock 20 mm. I wanted the bolts to grab deeper into the flywheel to make-up for the lost support from the cut-back perimeter.

I did not have the pressure-plate balanced for the sake of saving the $50 cost.

I now have second thoughts about skipping that last procedure, wondering how good the balance is on pressure plates from the factory. I want to be sure, for safety reasons, that the plate-to-lightened flywheel bolt holes are not going to fail because of an unbalanced plate.

So, how good is the factory balance on pressure-plates in view of the modifications to my flywheel?

Wholehearted thanks...