Clearly the locking nuts have been reused (which IMO is bad practice, also the stake is in the different location which may indicate the torque is wrong) but to me the bearings look used. They are discolored around the circumference where I would expect new bearings to be shiny. What do you think? The rebuilder said this would have new synchros, bearings, and seals.
I became suspicious when he said these transmissions normally only last 3 years and 30k miles before requiring rebuild, which clearly is BS. M5R1 / M5OD 5-speed manual transmission from a 98 Explorer, these were also used on Rangers, Broncos, and F150s.
EDIT: The transmission was delivered without the extension housing, so the parts below were exposed without any disassembly.