Penn grade 90wt
I put a rod through the shifter before adjusting, are you saying that itself could be wrong?
Bushings where the rods go? There aren't any and there isn't room for them.
The pressure plate is a McLeod diaphragm, pedals are as expected for an A-body.
The synchros looked OK before I installed the transmission. I was leaning towards those being the problem until I re-adjusted and the grind moved from 2nd gear to first.