removing the gearbox isn't that involved, should take about 2-3 hrs on your own, remove battery tray, gearbox linkages, loosen driveshaft nuts, jack up and support on axle stands, pop both balljoints, drain gearbox oil, remove both driveshafts, reverse sensor, timing sensor, starter, rear gearbox mount, undo engine rear mount, crack all other gearbox bolts, support on trolley jack, remove gearbox mount, drop engine and gearbox slightly and pull forward, undo all box bolts including ones by the turbo hose and rear engine stop, remove box, like i said easy,( there are a few bolts which are difficult to remove, get to) but you should be able to remove in 2-3 hours on your own, easier with a friend helping.