Yes the Landcruisers are archaic but excluding them from mine...

Yes the Landcruisers are archaic but excluding them from mine sites would result in overloaded Hiluxs and rangers as they dont have the chasis strength or drive train strength/power of a Landcruiser

Pitty Ken Johnson the ex MD did not do more with this.

Anyway How could a big Hino use the same size brake as a hilux ? :

"Earlier releases of SIBS® brakes will continue to be supported, however all new orders for existing models including LandCruiser, Hilux, Isuzu and Hino will adopt the SIBS® 4 improvements from December 2014."