Hi all dumb question I adjusted tne slick shift on my r380 box since then I have a gurgling noise in 4th gear at 80ks normally going up hill now the dumb question can 4th gear touch reverse gear as I pushed the bias block over towards the right fairly hard or could it be one of the springs on top of the box. I'm fairly sure 4th can't touch reverse but just want to be sure so I though I would ask you leaned folk thanks all in advance.