So i recently got a new engine and tranny for my 1992 honda accord. (engine swap h22a) runs great. but i noticed it makes a loud humming noise after i release my foot off the pedal. This happened i THINK before i got the engine swap too. but that was like 2 years ago so i dont really remember. it was sitting in my driveway for about 2 years. my new mechanic says its the wheel bearings. The engine and tranny r fine and run and shift well but even if im going 30, or 70, when i take my foot off the pedal it goes....huummmmmm, going down. Humming decreasing. He heard it and said the front wheel bearings need to be replaced. What do you think? thanks.