Hello,
I once, many years ago (during my prime

), replaced the gearbox twice on my Golf 1, 1.6 GLD, without using a pit or lift, and I did it all by myself. The first time, I removed the old 4-speed gearbox because I didn't like the rough sound it made when I took my foot off the gas, or the dull whistling noise it produced. The new, used 4-speed gearbox was then okay; it made absolutely no noises.
A year later, I finally found a 5-speed gearbox with a longer ratio and got back under the car to install it.
I jacked up the front of the vehicle on both sides and supported the transmission with a hydraulic jack and a suitable support.
After removing the drive shafts, transmission bell housing, etc., I was able to slide the gearbox out sideways, then lower the jack and receive the gearbox.
As far as I can remember, I had already loosened the drive shaft screws from above before jacking up the car, so I wouldn't have to get under the car for too long.
I'm not sure if you can still make good money with the three-ball golf format, or if it would go smoothly. But I don't think much has changed about the way it's structured, right?
But of course, having four hands is more efficient and faster.
Best regards,
Seit 221tkm Feb.03 Audi A6 Avant C4, 2.5 TDI, 103KW 140PS, Bj.96, Motor AEL, Getriebe DCF Automatik, Standheizung ab Werk Webasto DBW46