ON THE earlier Tdi Discovery, Range Rover and Defender models, changing brake discs could be a tricky job. On those models not only did the brake pads and caliper need to be removed, but the hub had to be taken off the axle in order to remove the old disc. This invariably extended to re-packing bearings with grease, replacing the oil seals and fitting new hub gaskets.
It’s easier with the P38 Range Rover and Discovery 2 models. Each disc is held on the hub by a single grub screw. When that is removed, the brake disc slips straight off over the studs.
THE DESIGN of the rear braking system on Discovery 2 and P38 Range Rover is very similar to the set-up on the front. However, unlike the front discs which are of the vented type to assist cooling, the rear discs are solid metal and the calipers are much smaller (front brakes do most of the work because, under braking, the weight of the vehicle tends to load onto the front wheels). But everything is dismantled in a very similar fashion. Again, there is no need to remove the hubs, thus making the job faster and easier than on earlier models.
REBUILDING THE front and rear brakes on the Discovery 2 and P38 Range Rover is as easy as taking them apart in the first place – or arguably easier, without rusty or seized parts to deal with. However, the braking set-up is the most vital of systems and must be built up in an organised and methodical manner to ensure that there are no errors. The old adage of check and double-check again is very important with brakes. With that said, there is little that can go wrong, particularly as the stripdown has just taken place and is fresh in your mind and all is correctly bolted up.