firenut Posted September 17, 2021 Share Posted September 17, 2021 In the attached pictures I have these hairline cracks in both front brake drums. They are still smooth, but regardless have the cracks.. is this critical or are they okay to continue to use? The truck is an antique and is driven about 10-15 times yearly. Quote Link to comment https://www.bigmacktrucks.com/topic/68182-front-brake-drums-are-they-shot/ Share on other sites More sharing options...
Popular Post theakerstwo Posted September 17, 2021 Popular Post Share Posted September 17, 2021 Use it. 3 Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/68182-front-brake-drums-are-they-shot/#findComment-480070 Share on other sites More sharing options...
D-Day Posted September 17, 2021 Share Posted September 17, 2021 Those cracks are heat checks that all drums get its normal wear 1 Quote Link to comment https://www.bigmacktrucks.com/topic/68182-front-brake-drums-are-they-shot/#findComment-480071 Share on other sites More sharing options...
D-Day Posted September 18, 2021 Share Posted September 18, 2021 You will also see this heat checking on a flywheel as long as your diameter and depth spec out you should not have any trouble Quote Link to comment https://www.bigmacktrucks.com/topic/68182-front-brake-drums-are-they-shot/#findComment-480078 Share on other sites More sharing options...
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