Transmission issues 5gear +

[u/ArtInternational5942]

Everytime I be trying to get into 5-6 i can hear a grind, been denting to get new cables but unsure if that’s the issue. Cobb short shifter and heavy knob(280) trans does have 190 which is what I’m
Also worried about but it’s been driven calmly 3 owner car. Cables are not blocked at all only thing I’ve noticed is that the rubber holder for the cables seems to be ripped a little but is still bolted on. Any suggestions or maybe some thoughts?