Salisbury or Rover?

Got a 1990 110 Td that's had a 200 TDi put in a few years ago. I've lived with the questionable braking since then but now thinking to uprate the system a bit. My general idea is to use a disco's master cylinder etc (i've herd they're different, i'm assuming piston diameter). Now will that be sufficient for a noticable difference in the system or is it a good idea to go discs on the back? If so, can you convert the salisbury axel to take discs and calipers or is it a rangy axel swap job or something? Thanks

I'm in the same boat. I'm planning to bung the back axle off a disco on complete with disc brakes. Partly influenced by the fact that my salisbury is past it's best and I happen to have a top notch disco one in my possesion. Haven't got to the nitty gritty of what fits etc yet but can't see too many problems.

better off fittin the disco axle, salisbury as fitted to the td5 110 will cost an arm and a leg (brackets for calipers and disco hubs/discs). Master cylinder size should not be a problem

Disco axel sounds an affordable option compared to converting the salisbury. Are the ratio's at the diff's gonna be the same or does it even matter? The Def 200 tdi is closer ratio'd than the disco 200tdi i have, is that normal or is it because the def has been converted to 200tdi but using the older transmission?

ratios are 3.5's in both diffs, tis the tranny box ratio that is different

Thank you, cleared some excessive wondering