Jb,
You need to add a jamb extension to your jambs. It should be the difference in thickness between your old paneling and the drywall, probably somewhere around 1/4" (which would be your gap showing now). You can either rip it on a table saw, or you may be able to find something the right thickness at a lumber yard or home center. The other dimension for your piece should be aprox. 3/4" to sit on your jambs. A brad tacker will fasten them up quickly.
Mike Hawkins
You need to add a jamb extension to your jambs. It should be the difference in thickness between your old paneling and the drywall, probably somewhere around 1/4" (which would be your gap showing now). You can either rip it on a table saw, or you may be able to find something the right thickness at a lumber yard or home center. The other dimension for your piece should be aprox. 3/4" to sit on your jambs. A brad tacker will fasten them up quickly.
Mike Hawkins
