The 15/16" that a local snapped (happened in his car, but not from his power)
Many people say the 15/16" will snap before it stretches much and that the 7/8 will stretch.
A 7/8 that I put in new and put less than 2K miles on.
Under my right foot ISS reluctors suffer issues. Doesn't matter if it'* bolted, or just the stock pins.
I demodded and sold the motor nearly whole to a guy. Mentioned that the trans would be the weak link. Hopefully he heeds that warning and doesn't try to enjoy the instant hit of power too often like I did.
If I were still in the game, I'd be aiming for a 4T80. Jeff is it fairly easy to program in say a 2000 Regal?