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#1
11-04-17, 13:19
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Most Tank manufacturers of the time made extensive use of aluminium in Light tanks. The Panzer I was the same with mudguards, floor, wheels and tracks, as well as the engine and transmission made of aluminium alloys.
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1942 Chevrolet C60L WO48 - (Workshop) 1944 F15A 1965 Workshop Platform Trailer, Binned ARN: 101-803 1967 Trailer, 1/2 ton AUST No 5 ARN: 154-748 1990 Perentie 6x6 ERV, ARN: 51-981 
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#2
11-04-17, 15:51
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Use of aluminum might be for weight, but it might also have been for lower melting point or ease of machining. Maybe a combination of "all of the above", I don't know the true answer.
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#3
11-04-17, 21:43
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The gearbox casing is quite likely to have been cast from Elektron, which was a magnesium alloy developed by a German company in the Inter War period. A company was formed in England in the early 1930's to produce Elektron castings. I know that the gun mantlet in the Vickers Mk6A was cast in this metal. It is light and stronger than cast iron. The gearbox casings on the Ferguson TE-20 tractor were cast in this metal and are part of the main spine of the machine, so on doubting the strength.
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Richard 1943 Bedford QLD lorry - 1941 BSA WM20 m/cycle - 1943 Daimler Scout Car Mk2 Member of MVT, IMPS, MVG of NSW, KVE and AMVCS KVE President & KVE News Editor
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#4
11-04-17, 23:34
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I don't think it would have been a weight issue, although my trans is probably 6-8 times heavier. Looking at mine now, I think I could have cut down the general thickness and still retained it's strength. I think it would have been for ease of manufacturing. If I was capable of casting, then I probably would have gone with ally as well. But I'm still happy with my progress. I had and estimate of $10k just for the wooden plug then it would have to be cast and machined. So It would have been upwards of possibly $20k and still no guarantees.
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#5
12-04-17, 04:09
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Quote:
 Understatement? 
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#6
12-04-17, 05:17
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I have now had the gears in and checked for clearance and all is good.
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#7
12-04-17, 05:19
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I also put the side bearing housing and cross shaft for a test fit and that too is good and the bevel gears appear to mesh correctly.
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