ID early vs late nv5600? pics?
 

I have a 9/99 6speed truck. I see no spacer under the starter, but wanted to see what the spacer looks like. Can't seem to find pics anywhere of one on a truck.

Also, theoretically, the truck could have had the clutch/flywheel/starter replaced, yet still have the small 1.25" input shaft? Trans is coming off the engine in a few weeks anyway, just wondering if no spacer/small input was even a possible combination?