Member - Phil G (SA) replied:

Never done it, but I gather the old series Hilux brakes were the go. A good Wreckers might have the exact info you need.

TD100 replied:

some one might correct me but dont they use 60 series stuff to convert 40s etc?Paul

SimonW replied:

Hi Jonny,
Many years ago I had a 1978 40series with drums all around & converted the front to disc's using the discs/hubs/calipers & master cylinder of a 1985 75series, all worked well & was a simple change over. There should be assembles available wrecker yards.

regards Simon.

raunchy replied:

Hi Johhny,
Did this on my HJ47. I am pretty sure it is the same for your but I think your splines on the axles are a coarse spline, could be wrong though. You would have to use hubs off the existing axles. You will need to replace the swivel hubs with ones that as for disc brakes and then get the disk hubs and the calipers and the discs.
When I did mine the brake hoses all matched up and everything was a straight bolt up. If you are in Melb, Somerville 4wd wreckers are a good place for info.
You should be able to use 60 series, 75 series or hilux disc brakes. The only difference with the hilus ones are the discs are not vented and thus the caliers are to suit the discs.. If you get hilux calipers get hilux discs.

Regards
Ray