I just did a trans filter/ fluid exchange about a week ago. I only dropped the pan and did not flush the converter, but I changed both filters. I did this because I didn't have the means to flush. Now just yesterday I checked the fluid level because I was feeling a lot of vibration. The dipstick read nothing when hot after cycling the gears, so I added 1 quart and another half which now put it in the cold full range. I still need to pick up more fluid to finish but. Now my concern is have I done any damage to my transmission and was the vibration related. btw I have the torqueshift 5 speed