Some Defender 90 TD5 has done 56,000 and them not happy with its brake power on the rear axle. During testing, the rear axle was poor so changed the brake fluid and pads but it made no difference the 56,000 mile rear disc pads looked new. Is there pressure reducing valve (PRV) with a different ratio to modify the braking balance?
There are many difficult pressure reduced valves out there but we have to bear in mind that Land Rover spent a great deal of time and money ensures that the brake distribution on your vehicle is correct and safe. Anything you do to change this may well make the vehicle unsafe.
The fact the rear disc and pads look like new mean that the rear brake is working correctly if they were not, then the rear disc would have a lot of corrosion on them. The rear brakes are designed to have very little power going to them unless you are either towing or braking very hard. Many owners will brake heavily once ever week or two just to ensure the rear disc keep clean because normal braking does not do this.
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