Obviously 2nd, 4th and reverse share the same "back " position. Assuming the position for the shifter hole the is in a workable spot... with the linkage rods off the tranny, you might engage reverse with an adjustable wrench and find a rod adjustment setting where the "back" shifter position is reachable with the reverse rod. Then try one of the forward gears (1st or 3rd) and adjust the rod accordingly...
There's got to be an adjustment that fits.
I hope this helps
