I didn't. The machine shop did...supposedly. Who really knows when you get all your stuff back and you pay the bill. You just have to hope you chose an honest shop and they did everything you paid them to do. I do know they called me and I ended up making an additional trip down there with my set of rod bearings and rings that I hadn't thought to bring with the rest. They said they needed them to do the balance so...I'm fairly confident. Haven't had her up into the 100+ range yet though. Fingers crossed.