is this H42 a early style type with a cast iron 2 piece shift tower / top plate / plates assy. ?
or
a later 1piece ALL Aluminum Shift Tower assy. ?
also ,
please photos , and good crisp clear ones close up of the shifter cane receiver hole in the top plate / tower , focus in a photo...
what else John and @Pighead can cause this ?
can the shifter cane of been inststalled when all 3 or 4 of the selector RODS and DETENT springs balls were out of sync. some how perhaps ?
i had this happen to me in high skool in 1993 circa. that was along time ago , but i recall this a bit ....