Not that big of a problem, but if it goes, your replacing the tranny. If your building a 2.8 truck why risk it. Contact Goerend, I think he has some wicked intermediates he had made.
We broke one in stock 94 truck well pump tweaked doing a 40psi boost 4wd launch on gravel took to are tranny guy put new shaft and new steel planetery in and good to go