G'day Folks
Workshop trailers were fitted with shockers,same type as 2a GS from memory,also the few water tank trailers,modded GS,from memory the axle is solid on the early builds,1966-70,later trailers may have had thick walled tube 150-200 lb. steam tube,but I don't know when or at what contract No it changed.
hope that is of help.
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