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Old 12-15-2020, 08:19 AM   #10
nkaminar
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Join Date: Jan 2012
Location: Western North Carolina
Posts: 3,900
Default Re: Consensus on brake drums

Cast iron drums are highly recommended for a car that is going to be driven. I read that Federal law allows only 0.060 inch wear or machining off the original ID. I also read that most steel drums are at the 0.100 inch stage, so scrap. The cast iron drums will not fade as much as the steel drums.

On a side note, I have been using an IR temperature sensing gun to measure the temperatures of the brake drums after a drive and using this information to adjust the brakes. So far it has taken me about 5 adjustments to get them where they are about even with the front brakes a little hotter.
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