Aluminum Drive Shafts.... thought?

I've only had 1 aluminum shaft and it grenaded on my first burn out. Got it on ebay.....I'm sure a quality unit can be had from a reputable company. BTW the slip yoke wasn't right and I tried swapping over one of my mopar ones..had a 7290 joint and it didn't fit. Called the place as I had requested a 7290 set up and he told me there wasn't an aluminum yoke for that and therefore I got a conversion joint....bad weld....boom. that was 10 years ago.