The parking/hand brake on all Land Rover models is operated from a drum brake fitted to the rear of the transfer box.
There are two types of brake shoe arrangement on 5 speed and automatic vehicles, depending on the year. Vehicles up to 1994 are fitted with horizontally mounted brake shoes (ie one at 12 o'clock and the other at 6 o'clock). This type can be easily identified, without removing the rear propshaft and drum, by looking at the drum backplate; there is a linkage coming from the backplate, to which the operating cable is attached.
From 1995, vertically mounted shoes are fitted (ie one at 3 o'clock and one at 9 o'clock).
This type can easily be identified by looking at the backplate, as it has a cable which comes directly out of the backplate, with no linkage.