Finally got back on the t-case for the '05 Chevy. I had ordered a new rear case half and decided to use it. The snap ring groove in the old one seemed about twice as wide as the new one, but I'm not sure this was due to abnormal wear.
I did this in the truck. Ready for rear half:
View attachment 270646
The chain plus gravity wants to pull the mainshaft down and left. Through random trial and error I found a 39mm 12pt socket fits the output splines really well. With this and an extension I was able to manipulate the mainshaft to get the rear case to line up
View attachment 270650
I had some old Proto snap ring pliers that I was happy to modify. I took 3/4" off the handles so they'd fit in the available Z space under the body
View attachment 270648
I also opted to "widen" them by building up the jaws with weld. It looks horrendous but worked really well. I was going to add a crude cross-hatch pattern with my engraver but it wasn't necessary. This allows me to more easily spread the ring without maxing the tool travel.
View attachment 270649
MA pump rub plate. I know there are more affordable options but I like American machining
View attachment 270647