I had gears put in my car about 4 months ago, now i noticed its leaking form where it connects at the driveshaft soo i checked the fluid to see if it was low and the gear oil was silver and gritty...is my rear end screwed???
Don't touch it!! Take it back to them and tell them that you noticed that you noticed that it was leaking. They should check it for you. When they do, they'll find some (prolly) jacked-up gears. If you can, try to be there, while they are working on it.