since the rear drums on the XJ are sh!te i'd thought i'd look at a rear disc convert so i got me some grand Cherry rear disc pre 99 and a pair of rover 820 rear calipers
![](http://http://i166.photobucket.com/albums/u106/dt00th/reardisc1.jpg)
after much redoing of the bracket i'm on version 3 which is a 12mm plate possibly welded probably bolted on behind the axle flange with the caliper just off center to keep the cable out of harms way .
![](http://http://i166.photobucket.com/albums/u106/dt00th/reardisc.jpg)
still in the process of fab'ing the bracket .
While doing the rear i stumbled apon a Range Rover(RR) front 4 pot caliper and with a small amount modifing i have been able to fit it to the front of the xj
![](http://http://i166.photobucket.com/albums/u106/dt00th/front4pot6.jpg)
![](http://http://i166.photobucket.com/albums/u106/dt00th/front4pot3.jpg)
![](http://http://i166.photobucket.com/albums/u106/dt00th/front4pot2.jpg)
![](http://http://i166.photobucket.com/albums/u106/dt00th/front4pot4.jpg)
These are the two pipe type and although with a t-piece you can run them with a single line i thinking of running them the same as the RR and spliting the rear brake circuit to the front as well hopfully helping with the biasing front and rear .
theres a huge amount of info on pirate about brakes
http://www.pirate4x4.com/tech/billavista/Brakes/which i'm going to work though to see if i need to change the Master Cylinder(MC) for a RR one or a Grand cherry or late model system .
has anyone got a diagram of a Range rover classic system to hand .
and does anyone know the bore diameter of a RR MC ?