Luke has the weights listed for what we took out stock and what went in aftermarket. I'll let him post those when he can find them.
I will say that the stock pulley was 3 lbs heavier than the underdrive.
Huge shout out to JusticePete at Pedders for working with me over a flurry of PMs to help me take advantage of the Pedders Christmas sale and pick up those inserts. Definitely great bang for the buck!