It's not aluminum, it's magnesium alloy, as stated. And Teflon tape does not cause cracks, overtightening tapered threads in soft material does... And I didn't crack it! It was cracked when I got it (without tape) but severely overtorqued. I really had to lean on it to get it unscrewed.


.Yea, I did not see that part about being magnesium; however, using teflon tape on soft alloy will allow you to overtighten without realizing you have done so, usually ending in a crack. Sorry for the confusion,