Removed transmission, cleaning parts?

Hello, yesterday I finally removed my transmission from the car. However, I got some lint on the speedo gear, how should I clean this off? Is it important that I do? I don't want anymore problems, so I'm trying to eliminate as many foreign objects getting into the driveline as I can. Is there anything else I should replace while I'm down there? I'm taking a trip to advance auto parts today, so quick replies appreciated! otherwise, I can just order the parts online, but I'm going back to campus next week.

i noticed in the rear of the transmission, where it is supported by the crossmember, that there are many cracks and rips in the bushing. Is that the crossmember bushing? Where can i purchase this part? I'm searching through the advanceautoparts website and there isn't anything about a crossmember bushing.

nm, just found it under "transmission mount". it's about 15 bucks. thanks a lot!