Yes, Use a dentist tool or something with a hook to grab the old seal and pull it out. then just slide the new one on and with some type of flat end tool (a large nail set) work around the edge until its seated. it goes wihout saying you need to take the shifter off . good luck. Dean
Put a sandwich baggie over the splined end of the shaft, and smear oil on the baggie, then work the seal over the shaft.
This will reduce damage to the seal.
Just a precaution.