4spd69RR said:
Just a thought from way back in my days helping my father inlaw with his 440 Dart. He used to go through tail shaft assemblies often. One summer went had to replace five. This was due to great traction and engine producing tremendous horse power. The weakest point always broke and it was the transmission tail shaft. You might want to check there since you said you performed a burnout!
that should be fine since gear vendors has a reinforced tailshaft when i did that swap...
no news yet....pulled my back out and havent even looked at it yet

uke: