I can understand almost of what you say. Thank you so much Professor!

The Explanatory Videos Accompanying your descriptions are only playing for less than a second on my Device 😮

At 34:33 There could also be shown a line from Reactionary ring gear to transmission casé indicating parking pawl holding rear drive wheels stationary ¡¡¡¡

hallo , goodday , im a follower from italy , i want ask you if you can help me with an 4l60e , from 1999, gmc sierra 5328 ccm , 198 kw lm2 motor , i have lost the big checkball at the beginning of the gearboxcase ,not the 7 small checkball but the eight bigger checkball .........have you the measure / sice ? the checkball who was the first to put it in the case before put the plate thank you for your time

At 25:54 I think you were in error, you showed the lo roller clutch working on the reactionary ring. Is should have been the planets inside circled as the reactionary ring is connected directly to the tailshaft/wheels ¿¿¿¿

I always wondered, what would you get if you re-routed the hydraulics such that the reverse input clutch would apply in third gear in addition to the 3/4? Would that relieve the beating the latter gets?

Is the resource "Diagnostic Scenarios" available to the public?