LR Parts do a kit but it says 200/300 tdi upgrade.
https://www.lrparts.net/catalogsearch/result?q=POWERboost+Kit+for+Non+ABS+Land+Rover+Defender+300tdi+%2F+TD5%2F+TDCI+-+available+with+or+without+Servo
I have a ex military 110 1985 land rover and see you can upgrade the brake servo to the td5 i think.
Is this possible on my land rover?
If not is there an upgrade?
SilverFox44