I have 1998 Blazer that I gotta do the rear axle bearing and bearing seals on but don't know what seals to get. I live in Canada so I automatically assumed it would be the Canadian built ones but after further research I'm unsure, as a vin decoder tells me my Blazer was built at the Moraine plant in Ohio and a Google search says no 98 Blazers were assembled in Canada.
On another note why would there be a Canadian built version if no Blazers were assembled in Canada?

 

It is possible that the axle was built in Canada and the truck was assembled in the US.

Apparently there is supposed to be a C or a K stamped on the axle. Buy both seals, and then match the new seal with the existing seal and look for the stamp on the axle.