In the beginning of your thread your R3 sprocket is turned CCW with the timing mark being at about 9oclock while the L3 and crank sprockets are in their proper position. Flash forward to reinstalling the timing belt on sprockets and R3 is back to it's proper timing position...
My R3 sprocket is exactly where yours was (around 9oclock)... How did you get it back to it's proper position? I really want my truck back on the road today but don't want to ruin anything so any help would be appreciated.
-Doug