You mean the part about “started engine? The engine is doing very well. When the accelerator is depressed the body of the vehicle rolls from the torque.
I have a 91 R2500 Suburban 4L80E transmission, I changed fluid and filter. The filter kit had a very soft pan gasket that was folded up to fit in the box. Steam cleaned the pan, cleaned the transmission seal surfaces, installed filter and gasket, TORQUED, filled and drove 12 miles. All is well...