I can't help directly with your question, however I may be able to point you in the right direction! This may be for IVA purposes? You need to be careful of not quoting the weight of the vehicle at each axle - that is not the figure required (my apologies if you already know that.) If you have sourced the axles from a donor car (eg Ford Escort rear axle) it will be the design weight of that rear axle, and may be available from a Haynes manual. This figure will always be more than the weight of the vehicle on that axle. Probably a good 50% more IIRC.
Last edited by Mitchelkitman; 21st March 2018 at 10:27..