Typical! My new rams are 1 cm longer than the old ones let alone leaking. Not checked them yet as the originals are actually working, on the ground that is!
The disc brakes they sent me are brilliant, they are an interference fit with the wheel rims and the disc hex does not fit over the anti rotation hexagon on the hub!
With a bit of work I suppose I can make them fit, FEJ says they do not use the drum type any more but the disc hubs do fit the axle/strut ok though. Be interesting to see if your drums work, good luck, Gary.