[daniel7shea7@yahoo]

My truck had a very similar issue. It would click mostly while accelerating, sometimes in park but never when revved in neutral. I took me the longest time to figure it out. Turns out it was the starter. When I pulled the old starter out the gear would slide freely back and forth. So I guess it was sliding forward and 'tapping' the flywheel ring gear. Upon replacement it hasn't happened since.