For years, I've basically worked alone on the fleet, mainly because so few people up here seem qualified or capable, or they're distractions.
But before that, I always worked with friends who knew what they were doing and were equally meticulous.
Sometimes we didn't even need to talk - wrenches or help or whatever would just be handed over.
Those were great times: got a lot done on each others' cars, raced together, busted each others' balls, shared tips/history/insights.
We could - and did - trust each other with our lives, and I miss that; enough so that I'm likely to move near at least one of them later this year.
Many have passed on, but a few of us are in frequent contact.