The flywheel is out. As you can see, things are very dirty, but the rear main seal, if leaking at all, is leaking very slowly. The new seal is on its way, so I’ll probably install it anyway. The new seals are supposed to fit flush with the case. This one sits proud by about 2mm. I’ve also ordered a new seal for the oil pump cover at the bottom.
Looking much better after cleaning. Notice the ’77 date stamp in the lower, left corner.
Here’s a closeup of the rear main seal.
The flywheel is in very good condition. You can see some minor wear on the teeth, still, not bad for 75k miles.
The main seal seals against the center hub. The hub is discolored, but is very smooth — nothing rough or sharp to damage the seal.
The timing marks will show up a little better with some white paint. The OT mark is top-dead center.
Next up is cleaning up the transmission and, after I receive all of the new parts, main seal and flywheel installation.