Now I'm stuck again. The next instruction from Indy4x is Release the snap ring that is under the gear on the idler shaft. This is the snap ring that holds the idler shaft to the housing. (This snap ring will remain loose around the idler shaft but will allow the idler shaft to move outward).
I've done that here. I first removed the outer snap ring (not sure if I needed to or not).
The snap ring under the gear they are talking about is this one in the photo. Ignore the gear puller in the upper part of the photo, as the way it is installed is just pulling on itself.
I used the Jerry method of running a wire through the holes of the snap ring to hold it open. The solid wire pictured broke twice, so I switch to a braided wire with a sheath, which also broke. However, in trying to get the snap ring to stay closed, I somehow got it out of position like I was supposed to.
Now I'm to the point where the idler gear has enough play that I was able to maneuver one of the shift rails out of place, but everything is interfering with each other and I can't figure out what piece needs to be removed first, nor how to remove anything.
Here you can see the shift rail out of place.
The flat, round piece fits in the slot immediately to the right, and the shaft fits into the hole toward the top of the photo. After you remove (partially) the interior snap ring, it allows the idler gear to move forward enough for this piece to come out.
This shows the new idler gear, and shows that it's a large gear toward the bottom, and a smaller gear at the top, all one piece. That larger gear is prevented from being removed by each of the two gears on either side, and each of the shift forks attached to the rails.
I'm indicating what I'm calling a shift fork, and you can see one on either side of the idler gear, preventing the idler from coming out.
Here is everything again just as an overview. You can see that the large gears on either side of the idler gear hold the idler in place. It's clear that I need to remove the shift forks and rails, but it's not clear how to go about this. There are several pins in the wrist of the shift rails, but I tried moving a few of them with a drift punch and they didn't seem to want to move, so I'm not sure if they are directional or not. I hope not, because I don't know how I'm going to access them from the other side with any amount of force.
Finally, here are the rest of the Indy4x directions, which I'm sure will make perfect sense once I'm done, but at this stage, they aren't that helpful. There is a diagram included with the Indy4x instructions, but none of the parts they mention are labeled in the diagram.
Using a long eared pulley puller, pull off the low speed clutch drive assembly. (The drive assembly includes the low speed gear, shift ring, spined shaft drive part, shift yoke and shift rail). NOTE! The idler shaft may have to be pulled up slightly to clear the yoke's removal. If the roller bearing and the inner assembly, make sure that you do not lose the inner bearing sleeve's drive ball that is located in the input shaft. Remove the idler shaft. Pull up by hand. Remove the snap ring on the idler shaft.