Here is detailed route to CRB Research Books, Commack Used cars dealership. Make sure you call on 631-543-9169 before you arrive at their location which is PO Box 56, Commack, NY. Their official timings are 8:00 AM to 7:00 PM Monday to Saturday. Make sure you call and get appointment before hand.
you can always call or text them on 631-543-9169 to get the Directions to their store
CRB Research Books, PO Box 56's Map in commack