The axle housing, is steel or cast iron ? - Team Camaro Tech
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post #1 of 6 (permalink) Old May 25th, 02, 05:41 PM Thread Starter
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I need to know what the axle housing is made of, cast iron or steel since I have to have the u backet re welded.
On local guy says they are made of steel and another says cast iron.
Its a 1970 if that matters.
So, is it steel or cast iron ?
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post #2 of 6 (permalink) Old May 25th, 02, 06:57 PM
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post #3 of 6 (permalink) Old May 25th, 02, 07:37 PM
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I VOTE for Cast Iron Center section with STEEL tubes pressed into either side to form the differential housing......Chuck/Seattle
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post #4 of 6 (permalink) Old May 26th, 02, 04:41 AM
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The center is cast nodular iron, the same thing cast crankshafts are made of, and any welding that you do on it will change the heat treatment in it. You need a very experienced welder to work on it. The axle tubes are mild steel and can be easily welded.

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post #5 of 6 (permalink) Old May 27th, 02, 08:48 PM
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So how does one weld the axle tubes to the housing, like some racers do? I am thinking of doing this myself.
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post #6 of 6 (permalink) Old May 29th, 02, 03:35 PM
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In production, the tubes were pressed into the center section, then they were "puddle-welded" together, then the assembly was heat-treated (annealed) to relieve the welding stresses.

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