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To the best of my knowledge (at least on earlier models) they are a fairly
tight press fit into the engine block and a snug fit into the bellhousing.
If you have it straight, it should pull out fairly easily. If it is cocked,
it will be harder, the more the worse.
If it is loose on one side and stuck on the other side you might take a couple
of putty knives and put them between the bellhousing and the block as close
to the dowel as possible on each side and then pull the tranny back to center
or beyond (using it as a lever) to pull the other one loose. I don't think
I would recommend either heat or drilling. Brute force is better in this case,
at least when properly applied. I suspect that once it moves any, it will
come all the way out fairly easily unless there is an issue between the input
shaft splines and the clutch plate (which may require more brute force).
Warmer weather will help as aluminum expands faster than steel.
There might be a bit of aluminum (galvanic) corrosion between the bellhousing
and the pin. Remember the few years when the old Ford flathead V8s had
aluminum heads? They even made tubular core drills to go between the headbolts
and the heads to get them loose. I can remember seeing piles of those old
heads as tall as I was at the time. (Since I was born shortly after the end
of that era, the piles had been there a while already.)
--
George Downs Bartlesville, Heart of the USA!
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