Firestone Accu-forge wheels

[kingmtpg]

When I purchased my 78 35"FC it had a crack in one of the Firestone
Accu-forge wheels. The crack was from one of the lug bolt holes to one
of the "Slot" holes. Now, 5 months later I see a tiny crack radiating
outward in another lug bolt hole, no doubt heading for another of
the "slot" holes. Am I correct in thinking this should be dealt with
promptly? Can they be repaired? Is this a common problem with Firestone
Accu-forge wheels and if I replace it with an Alcoa, will it mix and
match ok with the Firestones? Sorry to bother with so many questions,
but your knowledge base is unsurpassed. Brad Bloxham 78 35FC