If your yoke is jacked up, then you need to replace it. Plain and simple. Don't keep using the same old yoke. Repalcing/rebuilding the shaft won't do any good if the good ears on the joint that blew up were in the shaft...You need to replace that t-case yoke. You should prolly lower the t-case a bit too. The tapered blocks help your pinion angle, but do nothing for the angle at the t-case.