you dont' need to drop the subframe, just the steering rack needs to be unbolted and shifted around. Just make sure you get it back in line before bolting it up. I had to take off a P/S line to get it where it needed to go...now it leaks.
It's a pita to do but you also need to unbolt the oil pump while the pan is just lowered...took me probably 2 hours from start to finish on stands.
Currently: 2002 C5 Z06, 2004 A4, 1991 318i LeMons car, 2012 M796, 2003 TT600, 1976 XS650
PM me for your sidewinder (laser cut) key blank and cutting needs. Have OEM pre-ews keys and replacement shells.