Ok here are the pics. I did one fork/slider at a time so I wouldn't mix anything up. When you pull the slider off of the shaft make sure you cover the ends so you don't loose the ball. I used an awl to insert the new spring into the hole and the spring sets down in just far enough that the ball will rest in the hole. I then used a center punch a couple sizes smaller then the access hole so there would be room to move it to the side as I inserted the shaft which would then hold the ball partially until I used a flat head screwdriver from the end to push the ball further down and allow the shaft to pass over it.
I cleaned up the gears so I could get some better pictures of the wear on them and to also try and show the assembly a little better. The fork sliders did have some wear from the shifter which to me is normal. I know someone mentioned other wear on the shaft but I didn't notice any one mine.
The axle seals on these things are extremely easy to replace since the collar comes out of the housing. I replaced the axle seal on the right side along with the o-ring and will do the left side tomorrow. I already assembled the cases back together but it is easy to remove the collar once the axle support housing is out of the way.
I used a razor blade to clean off the old gasket material and put the two dowel pins back in place on the lower case. Lowered the cover down over the axle and as it got closer I did have to tilt it a little bit like the manual showed for it to drop far enough to rest on the dowel pins. Once it was on the dowel pins I used my rubber mallet and slowly worked side to side, I had to rotate the axle just a little so the gears lined up and the cover dropped the rest of the way.
Here are all of the pieces I took out of the transmission:
Here is a shot of the original spring which is broken in two pieces and the ball:
Here is the original spring beside the new spring to show the comparison between the two.
Here is a shot to show the spring and detent ball recess and access hole.
I used an awl to insert the spring into the recess through the access hole.
I used a center punch to push the ball down far enough to get the shaft to hold the ball, then used a straight screwdriver to hold the ball down further while pushing the shaft through the rest of the way.
Here is some detail shots of the gears to show their wear.
Here are the gaskets and replacement parts:
Here is the axle bushing that I pulled out to replace the axle seal along with the new seal in place.
Couple pics of the gears and shift forks back in place:
Put the cover back on the case with the new gasket and used the dowel pins to keep the gasket located.
Transmission back together and also a shot of the shifter forks put in the neutral position before putting the gear shifter back on.