Trying to ID the source of a klunck coming from "under" area just in front of the 4 wheel drive stick/shifter on transmission hump. Basically under the floor heater vent. Truck runs, shifts, acellerates fine. Sound, a klunck, occurs at any speed and whether or not under load, when I lift my foot off the acellerator. Does not affect anything. Running in 2 high with hubs free.
U joint? Any input appreciated. Thanks.
