Not sure what the o-rings are for but the bar is to keep the reverse lock out sleeve in place there is a hole in it you have to pound it in. The knob try starting the thread in different places then it will face.

Later
Josh

New car: 2004 Mazda 6, V6 sport Former car: 1998 Ford Contour SVT 1968 Dodge Charger R/T (General Lee) www.confederategeneralleefanclub.com