Diamond T 1000C Heavy Truck by American Industrial Resin Kits.
Diamond-T 1000C conversion kit includes cab, bumper, aircleaner, complete interior, mirrors, airhorn, turn signals, grab handles, running lights, decals, window glass and exhaust. Grey parts are made of metal (pewter). This resin model / body would require a Heavy Truck model kit or a Light Truck model kit for donor parts to finish.
This product can be purchased at - aitruckmodels.com - if still available.