By inspection I think those tight bends will cause cracking depending on the material and the orientation .
Transverse direction is more vulnerable to cracking in rolled plate.
The loading in service will determine if fatigue failure is a consideration, and that can have profound effects on the...
1 - What is the OEM's recommended torque for the bolts/screws securing the bracket to the transmission case?
2 - Ditch the lockwashers.
3 - the faying surfaces on the bracket and the transmission casing must be flat within .005" and max 250 Ra µin.
3A - 80% contact minimum. 100% contact...