1997 dodge 1500 ram when driving Rpms shift high than normal after reaching 45 mph every thing normal could it be the transmission or the spark plugs

I change the transmission oil and filter and while I was down there I discover that one of the hornets was some what lose I put it back to place drive than started that work great than I drive agine it mush have gone lose so I'm thinking maybe the hornets needs to be replace today I'm going to find out.... thank you jeremy for your help I change the transmission oil and filter and while I was down there I discover that one of the hornets was some what lose I put it back to place drive than started that work great than I drive agine it mush have gone lose so I'm thinking maybe the hornets needs to be replace today I'm going to find out.... thank you jeremy for your help

I found that the over drive wiring hornets next to the tran was lose and I cleaned it and fix the problem thanks I found that the over drive wiring hornets next to the tran was lose and I cleaned it and fix the problem thanks