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I guess it's time to dig deep on these parts. I've just never seen a failer of the slip yoke before. Who do you get to build your driveshafts?
I guess I could get a driveshaft from a junk yard that takes 1350s, cut it down myself and put good u-joints and billet yokes on it. Will that be strong enough?


You can't cut it down unless you can balance it. Have a good shop build a heavy wall shaft or go with moly or alum. Most heavy duty truck shops have a drive line shop and can build custom driveshafts.