The 7745 must have disk brakes.
You can check for the lever mechanism on the back of the rear axle.
If the brakes have to be redone, you need to pull the halfaxle portals which are quite heavy.
It is advised to use one of those workshop cranes like car mechanics use to swap engines, but a rope on the roof might also work.
Or just a strong table with a smooth (for sliding) top.
If you have another tractor around you could try the 3pt hitch or front loader as well.