When I started out as an apprentice motor mechanic in 1974, we repaired everything. Engines, gearboxes, axles, starters, dynamo's, alternators etc etc. Even used to fit new linings onto clutch plates and brake shoes.It will be classed as progress.
Like someone taking apart a brake caliper, starter motor, alternator etc...... rendered extinct by someone bolting a brand - new replacement on in its place, and lobbing the old part into the scrap bin..