Another tip for you. If you happen to be installing one of these seals with the round spring on the inner lip, more times than not, 2x4 or seal driver, when you pound it in, that spring will pop off. Trying to put it back in place takes a couple of picks and a lot of swear words. To prevent this from happening, coat that spring, the whole circumference, with some wheel bearing grease. It'll keep the spring in place and the grease won't hurt anything if it's an oil filled hub.
