Manual Steering Box Replacement Question

Good point about many things affecting steering effort.

My car has stock 14 inch wheels and tires. I think it's a stock pitman arm. It has numbers on it: 7282-FLc1 C58, if that helps. The steering wheel is also stock 16". All of my ball joints are new, with no play and I had the car aligned. The shop said the steering box is worn. So, I've pulled the box and now I'm ready to buy one or rebuild mine. In reading the rebuild threads, it doesn't sound like much of a rebuild, more of a clean and re-grease. Is that correct?