First of all hello and hope everyone is safe and healthy. Hope to be at the Ozark meet again this year.
ANYWAY... This is Flying Saucers (Grady) friend Dave (painted the orange crossfire). I'm serious into Crossfires now...

I picked up a rather tortured SRT6 coupe. The rear of the car almost had the axle ripped out of it. I'm trying to rescue it...

I used an entire rear axle and cradle assembly from a roadster in this SRT6. Its in there now.. Has anyone done this before? I assume the axle gear ratio is going to anger the computers?
Is it necessary to have a TCU flashed or can the one from the Roadster be installed and work ?