Greeting all. I joined this forum but have not spent much time on it. I have re-designed the plastic bearing retainer that is broken in your distributor. I sell them for 2.00. Here is a picture of my broken retainer, an origional and my re-designed retainer. I removed all the week spots and beefed up the holes where the ball bearing sit. This will fit any 4 or 6 cylinder matchbox distributor. HAS TO BE A MATCHBOX DISTRIBUTOR. I have these posted on another Z site or if you search 280zx distributor repair kit you will find my story. Good luck.