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Steering Boxes
#1
When did the steering box become aluminium and was it on all models?
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#2
Aluminium boxes began with the first model (1923) sold.  I'm not at home to check correct dates, but in the 30s they went to cast steel, then for a time they reverted back to aluminium, then by 1936-7 on the Ruby-type models they went to a different "hour-glass" shape in steel.  Hopefully someone with access to reference material can fill in the dates if you wish to know more.   Cheers,  Bill in Oz
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#3
Thanks Bill
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