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Quote:
Originally Posted by 19Fordy
Could have been something to do with being the cheapest way to make the wheel mounting surface to surface distance wider to accommodate a wider body without having to redesign the rear end housings, axles, etc?
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Wheel-mounting surface distance between early and late DID increase, but the rear end housing itself ('42-'48) was about 1-1/2" wider than the '35-'41. The different drums were dimensionally the same when mounted.
As far as cost savings, you need to first consider that engineering costs and total re-tooling for the differences ain't cheap. And considering that both had flanges whether seen or hidden, there is essentially no savings in materials used. So...…………….what am I missing? DD