Originally Posted by veganbikes

I would head down to your local shop and confirm sizing. You may just need a different bottom bearing. I never had to take one apart and mine of course is the Pro Module so has a carbon fork and possibly a different head tube (though it is sealed in the box at the moment)

I could also check with Specialized to see what they recommend for a replacement fork or at least sizing. I can't imagine it is 1 3/8.1 1/4 sure but then you have plenty of options.