My cases arrived from HD and they contained a surprise for me. I was under the impression that they had changed to a tapered bearing on sprocket shaft as an improvement such as the 1999 case had. I recieved a 2003 case which comes with straight roller installed on both sides and a kit with thrust washer and bearing ride for sprocket shaft. I just have to buy the dyna spacer to obtain proper end play. Having set preload on many tapered bearings on other equipment in my time I find it hard to believe straight roller bearings to be superior. Opinions?