Stock or Hemi upgraded? This sounds more like an affect of a hemi on the stock system vs a stock on stock system. What front/rear axle's are being run? The after market 60's & the hd44's run a heavier setup than the 30's have.
A 6.1 Hemi is obviously going to put more strain on the whole drivetrain. Obviously, how you drive will make a big difference, but the fact you are putting a blower on a 6.1 Hemi kind of suggests you use that right pedal a bit.
You don't say how it went bad. Did it just develop some play, or did a cap walk off off?