Just found this on LR4X4 forum:
"The front spring mounts (F&R) are longer to match with the longer spring hangers, the gearbox crossmember should be removable and has a notch in it to allow for the steeper angle of the propshaft, the rear crossmember will be the MOD type with square ends and it should have mountings for a fuel-tank under each seat."
Hope that helps a bit.
Geoff