Can I ask why it needs to be removed?
Only because you are looking at a big job if you cannot get a puller on the gear. The gear and shaft are held in alignment by a woodruff key and press fit to the shaft.
As long as you can get the timing cover off, having access to the oil pan front bolts/screws and can cut the oil pan gasket if it is stuck to the cover. I don't see why you would not be able to change gears with the engine in the cradle......
Replace Crank seal.
Would you like the page out of the chiltons' manual?? it calls for a cam shaft removal... lifters, push rods,.....etc
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Mark
In the Great Northwest!
[This message has been edited by NW-Fiero (edited 09-04-2008).]