I will give that a try but its just a 65 dollar junkyard trans I was going to rebuild but thought I would see if it was good,been in for 5 years and over 10,000 miles and got me to Daytona and back last year so if it does need repaired I go my 65 dollars worth. Its not rattling like a loose convertor would be but sounds like bushings are going bad and the noise is in step with the rpms but well worth checking the convertor bolts first,I had not planned a rebuild for it just yet since I am going to go back with a Y block next year but if I want to go to Daytona this year a rebuild might have to happen.