HR rotors,calipers and stubs

[ek amigo]

just wondering if anybody can enlighten me , I have two sets of stub axles ,rotors and calipers ,one I pulled of a HR myself and the second set i bought from trademe ( like ebay in NZ) well they are quite different ,one has a much thicker disc and PBR calipers and the other has a thinner disc and some other caliper also where the wheel studs are is different .

[rosco]

HI EK amigo,
from what I can make of your pix - the one one the left is HR - new they are a thickness of .375".
Both HD and HR had twin piston calipers either PBR or Girlock. The bore diameter of both pistons is 2 1/4".

The second pic, I believe - is possibly from a later Torana .... to me, this appears to have been fitted to a vehicle with 5 stud 13" wheels - but I am a little concerned with what appears to be a wider stud pattern...... and cannot be confident of my observations in this pic....

the pic also suggests that a "floating" single caliper is fitted..... which is definitely not HD/HR...

I believe both discs are of 10" diameter......

frats,
Rosco

[wot179]

The rotor and caliper on the right is LX or UC.
LH had a cast iron caliper.
If you use these on a HR front end you have to swap them side to side.I think you need to grind just a bit off the x member for clearance as well(sorry,its been a while..)
Ive used them and had no troubles.