I drained and replenished the fluid in my LT77 transmission with the prescribed DextronIII fluid. Upon completion, I realized that I forgot to remove and clean the small cylindrical filter in the bottom of the tranny case. I just bought the vehicle and don't know when the fluid was last changed. Should I just wait 'til the next change to remove and clean the filter or should I waste the freshly added fluid and do the job over again and clean the filter?