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Rear seal and shuddering clutch questions. 120-130 1967

Often times when I begin driving my car, there will be a pulsing shuddering action in the drivetrain and rear suspension when I let out the clutch from a stop. The severity of this problem seems to be variable, and can be partly avoided by quickly releasing the clutch when starting out, but sometimes it is not an issue at all. So I figured it must be a problem with the clutch or maybe driveshaft and went about taking it apart.

When taking out the bolts hold the starter, and clutch slave, they were heavily coated with oil. The flywheel looks dry on the clutch side, but has a coating of oil on the seal side. The clutch seemed fairly dry, but the bellhousing seemed to be well coated with oil.

I have taken pictures and posted them on the web, they can be found at:
http://home.attbi.com/~tremendousm/

I am going to go ahead and take the flywheel into the shop, and I am going to get the driveshaft checked out also. All the bushings in this car are new.

Questions:
1. Is this probably a leaking rear seal causing the clutch to slip?
2. How hard is it to change the rear seal (B20)?
3. Is there anything I am overlooking?

Any help would be greatly appreciated.

mario m.






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