If you look under your axle you will see two jack pads... they are sort of elipsoid in shape and are cross-hattched. We used 20 ton bottle jacks, but any hydraulic with the right reach will do. Don't forget to wedge the front axle.
Also, check the service manual on the server -- it has the correct procedure.
As for the weights - I would suggest you make sure you have someone with you as them wheels are heavy with the weights on - I know - and Don't Ask Why
Also, ask George Willer to explain how he takes his off - novel idea and ideal for one man...
Course, there is the other option which I call the "Rudi Option"
which is : pick up the phone, dial brother in law, get him to bring his 20 ton crane over, sling it and awaaaaaay ya go