I was wondering if Durant (model 40 or M4) parts are very hard to find. And, are they very expensive. Any help would be appreciated.

Miles, it depends on the type of part. Ignition parts, (sparks plugs, points, rotor, cap, wires, etc) are easy to find, see the Tech page for part numbers. Body parts from the 1920's for any car regardless of make are harder to find, but not impossible as many DMAC members have extra parts they will sell or trade for. A Model 40 shares many body and running gear parts with the model 60, so that's an additional source of parts.

Rick

Thanks for the info Rick Botti.