You can dig out what you can reach with a flat screwdriver, then top it off with 90 wt gear oil and drive it a while until it works its way in and mixes in with the old crud, then either siphon it out, or leave it in if it doesn't leak.
Carl


1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission