I put it in gear and it chatters a bit, then when im on the hwy it makes a whistling noise at certains rpms. When i changed out the tranny the old one had oil on the top of the housing like it was trying to go in the tranny. I didnt clean the oil off when i put new tranny in nor did i torque the bolts. could it be the oil? the noise is bugging me i needed a car for school right a away thats why i rushed. but now its the weekend i have time.