Ball joint removal and install tool for GM vehicles

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I have no Idea I haven't opened a service manual for anything in years to look at anything other than adjustment or torque specs or electrical circuitry.

30 years ago, the owners manuals had the order form for the service manuals, and they were affordable. Now they want crazy money for them.
These new vehicles were not designed to be serviced. The best information I've found is on youtube where multiple videos can be found for simple techniques to access and change out stuff that should have been simple. Transverse engines are crammed into the front, and no space left to service.

I have a 1957 Chevy 3/4ton truck, everything is serviceable on it with little effort. My first car was a 1962 Pontiac, also easy, but with air con, and power steering, a little more effort. The only thing that needed improvement in those was electronic points. Best thing they ever put in engines.

As for modern autos, I will never buy American designed, Detroit has no clue as to making things serviceable. I see this as kids that get engineering degrees never worked on things growing up. It's because we need mega more engineers, and only a few have the natural born talent. And clearly serviceability is not a design requirement. Only need to slap them together fast. That and Detroit designs for a 7year/70Kmile auto life span. That they are good at designing into them.

You seem to have a fleet of older diesel trucks, and probably don't run into compact engine compartments. You also luck out not having salt on the winter roads working to destroy every metal to metal joint.