I have to admit, I find it an awful design that requires cab off for servicing trucks—but when that can be done, it sure looks like it would make the work vastly easier.I know a guy that is a career mechanic who is very good and very fast. Depending on the model, if he needs to remove the engine, he puts it on a rack, removes the front drivetrain, and pull the engine out the bottom. He says it will cut a couple hours off the job time because so many things are extremely difficult to access from the top.
When one spends more time avoiding removing something than if they just yanked it out of the way… are they really saving anything?
YMMV in the rust belt where things can go sideways with each and every fastener.