The zook doesnt run a floating axle like a landy, it uses a non floating, where the rear wheel is physically attatched, and supported by the half shaft and thus there is no-where to fasten a front hub to the rear. there has been some success with Subaru bits(for some unknown reason), and there are kits available. The Yanks(as usual) have gotten there already and can supply conversions.
You can get a rear drum, machine most of it away, use this to fit a front disk sandwiched between the remains of this drum and the rear wheel, then Fab up a caliper mounting bracket to bolt to the end flange of the axle.
Using a transfer case with the parking brake built in, this will give a working rear disk conversion.........
