I have a leak out of the rear of my tranny near the yoke seal. Just wondering if it is likely the bushing that sits behind the seal or would it be the seal itself that it is leaking. The drivesahft seems to have a small amount of movement which makes me think the bushing may be a little worn out. if so how can it be removed? The shop manual calls for a specific tool but can it be done with a normal tool.