Measure the rod on the maxi on the other side of the axle
Is it just a problem when you try to start the engine when its warm or cold or both?
Oil cooler. Not a big deal if you got the tools
Remember to only shut it off in N
Sounds like you have 2 leaks. 1 may be internal like a sc1
Probably just the switch. Jump the wires and you'll know right away if its the switch or the flasher.
I tried to repair the wires leading to the rear solenoid as they were damaged. It didn't even hold up to the road test. I changed the harness but...
I used to work with a guy from that dealership. He was a journeyman that never even hooked up to a trailer. I'm not surprised that you got ripped...