my transmission does this too. at around id say 4,000 rpm. itll go up about 150-200 rpm before going into gear. but if i drive really smoothly. it doesnt do it. im gonna start doing the D&R. i got only 64000 miles. i may have put too much fluid in the first D&R. i took out 2.5 quarts and put in 3 quarts. 2nd time. took out 2.5 quarts and put in 2.5 quarts. i think the next time im going to put in 2 quarts of atf only. what do you guys think?