I always do put a little grease in there, my pilots came from Brewer. Amazing side note, the '69 Hemi clone Road Runner that I have apart. When I pulled the trans and engine, the pilot shaft bearing was pushed forward into the void, and the trans 18 spline bearing retainer was the small one , the bellhousing was for the large bearing retainer! Previous owner said it drove fine. I haven't driven it yet, had a broken ladder bar mount, his wife cut off the funding, that's how I came into the picture. I will correct those two of many many issues. Hope to drive it next year.