Today, I got the transmission back on the mower.
I didn't realize that it took weird U-bolts to mount the tranny axel to the box of the mower. I ended up re-using the original ones, even though they were ugly and surface rusty, there were still solid.
It's quite a trick to hold up the back of the mower, slide the tranny under while getting the stick through just right and lowering the box back down, all while trying to hold it up with a jack that can only go where the tranny has to go past!!!!
It took me longer than I thought it would...
The brakes still need work. Even with the brake adjusted about as far as it would go, it barely drags when I press the pedal. I will need to find new brake pads, the old ones are just worn too thin. Thankfully, I can remove the brake without having to take everything else off.
I mowed the front and side yard. Afterwards, each of the batteries was at 11.9V, or roughly 40%
That was with 3 batteries.
I parked the mower and hooked up my pair of 12V chargers (wish I had three!)
When I add three more batteries in front, I should double my range. I think it should be just about right to mow my entire yard on one charge.