ok well after i was finishing up repairing my rear brake lines i noticed that i have a leak from the speedo cable wehre it attaches to the trans. I tried seeing if the bolt was snug and it was. The cable itself seems loose in the housing, there is some play when i wiggle it. I'm assuming that i'm going to need another gasket /o-ring? I know there's a "bullet" looking thing as part of the speedo gear assembly. Out of curiosity, could a leak at this point cause my speedometer to be off ?