Got a weight?

I'm thinking about my 2nd tear....I think it is going to be tough for my 1959 Rambler to haul the tank I built last year, besides I want to do one with a Walnut finish.......what I really want to know is if anyone has a weight on their Dexter Torsion axle? without wheels...I'm in the midst of redesigning my frame etc....I used a 4" drop with springs on my first one...I know I'm not specific on the dimensions, but am thinking about 4 or 5 foot wide so didn't want to cut out any potential info.....thought this might be lighter way to go....any help? thanks in advance....Doug