G'day Folks
To clarify Phoenix's comment re the chassis,ALL Australian Military Landrovers in the 2a series were built on a raised chassis, I.E. the Spring mounts were built to give the vehicles greater ground clearance, and had added strenghing plates,(after approval from Solihull) this chassis design was so successfull that Solihull decided to put the chassis into production as the "1 Ton", along with a lower Transfer Ratio, and with 9.00x 16 tyres and diesel spec springs, this model was never imported into Australia, therefore all Chassis produced in Australia are from the Rhd CKD Chassis series, hence the 243/253 chassis prefix numbers.
Hope that is of help
cheers