Three quite different kinds of Land Rover diff
On the beam axles of a classic Defender, Discovery 1 and 2 and Range Rover Classic, the Rover-type differential is a self-contained centre that lifts out of the housing in one piece. Long-wheelbase Defenders swap the rear for the far larger Salisbury, built to carry heavier loads, and the two rear centres do not interchange.
The Discovery 3, Discovery 4, Range Rover Sport L320 and L322 Range Rover moved to independent suspension, and some left the factory with an electronically controlled rear diff that locks progressively under Terrain Response. The Freelander 2 and early Evoque are different again: mainly front-driven, with a coupling ahead of the rear diff that only sends drive rearwards when it is needed.