you can see a lot of the transmission through the oil pan opening, but you'll have to split the cases to so anything. it's not so bad. remove oil pump from the left side, and the clutch cover from the other. i believe you can get the primary shaft out without disassembling the clutch, but it'll probably be easier to do so. with the oil pump removed, you'll be able to see the end of the shaft. tap on the end of it with a drift, and it'll come out the other end. with the pan removed, you'll be able to fish the shaft out while leaving the idler and primary chain gears in place. with the shaft removed, they'll come right out. it won't hurt anything to leave them laying where they are when you split the cases though.
make sure you don't miss any bolts in the cases. in my experience, when you're sitting there scratching your head trying to figure out why it just won't come apart, there was always one bolt forgotten.
use a rubber mallet or deadblow in the solid places and it'll come apart fine. use light amounts of 1104 to reseal it. i probably have whatever trans parts you need, should any be damaged.
