1990 chevy lumina 3.1 3 speed hydramatic shifting problems

i have a 90 lumina with 130,000 miles on it and the transmission slips and jerks in 1st and 2nd only when it's warm and when you give it moderate gas. A sensor connection broke off and idk what sensor it is. the housing has 2 small metal hoses coming out of it. the car acts like it's bogging down when u hit 35-45 mph and the car shakes from it.the fluid and filter were changed 5 months ago. can anyone tell me what's wrong with my car?

Not without driving it.