normal or not

[strokermann]

i just noticed yesterday. that when i am driving it seems like the the engine revs up about 50 to 100 rpm right before it shifts into overdrive. never seen it do that before. should i be alarmed. fluid is good and level is fine. any opinions. thanks

[slpin]

imo
if the fluid is good, i would not worry about it

my friend's dad (i work for him) 350 dually seems to do that when it shifts, and there isnt a problem with it as long as i remember....