Well.. if I replace it will I be back here next month with the same problem ???? I have maybe 500 miles on the engine and trans and I don't want to go through this exercise again...... Is there a heavy duty input shaft that I can get????? Is there anything I can do to minimize the chances of a repeat???? FWIW, when the trans failed I was at the dragstrip with my drag radials on for the first time and it let go at the 1-2 shift........ At this point, I would rather spend the time and money and go 727. I don't want to just replace the input shaft and hope for the best as I think a new one will just end up snapping again. I do like having the 2.74 low gearset and I spent alot of money on a fresh rebuild with good parts but if I can't be somewhat assured that I won't break a new shaft I don't think it is smart money to "hope" I won't have another failure.... I want to have fun with this car and take it to the strip often. TBF