Yup. Unless your tranny has a zillion miles or your driveshaft is woefully out of balance the new seal will fix the problem. No need to worry about the bushing, which isn't intended to control oil, just guide the shaft.

From a private garage expect to pay around $20 for the seal. Get their labor estimate before you approve the deal. As said above it shouldn't be more than one hour.really should be less but who knows.

It might involve draining or semi-draining the transmission fluid so have ready what you want to go back in there. There are too many ways for shifting to be messed up in a modern transmission with grab bag fluid.

R.