Yeah thanks, helps, it want work than, ST141 have 100mm space between caliper mounting holes, there was this thread about Nissan Calipers on ST141 struts, which clearly says that it's 100mm... and I do understand the rest too, it want bolt up properly and both parts have thread... will go the Hilux Caliper than, would a RA40 Master Brake Cylinder and booster be enough or has it got to be the *A 70 one? Any other options for calipers that fit the 90mm bolt pattern and vented disc known? (Beside spacers for the Corona 2pot ones) Does any Sumitomo Caliper have that mount spacing? Than late RX7 ones could be an option...