Good seeing you Randy.  Holy moly that thing is slagged.  It's hard for me to believe he walked away from that and was in good enough shape to help others!  That's crazy.

Nice chatting with everyone.

This is the accident I was talking about:

https://texasislife.com/texans/texas-paramedic-survived-his-vehicle-being-crushed-by-a-semi-crawled-out-and-started-helping-others-in-huge-i-35-pileup/

I would stick with the TH400 unless you go PowerGlide which is even more bulletproof. And if OD is ever a concern, then pick up a Gear Vendors OD unit. Built for up to 2000hp, replaces the 4" tall housing, direct bolt on and simple push button actuation/disable.
https://www.gearvendors.com/product/automatic-3-speed-t-400-mech-speedo-11/?TYPE=STREET-STRIP&FUEL_TYPE=GAS

Granted, that's a $3k investment. But we are only here to help (spend your money).