Wire rope movement indicator ??

Hi there, just found your forum !

I know my terminology is probably wrong -- I never did know the proper term for this item.

I own / operate an older Clark 720 OS R/T crane - Roughly late 1970's model. Everything is basic / manual on this thing - no computers.

For precise raising / lowering of the load I sometimes find it hard to know where the point is where the cable just starts to creep in or out just a bit.

Best I can do is go by watching the cable and / or listening to the winch but this isn't always the best.

I'm looking for some kind of in cab load line movement indicator.

I remember seeing one on an old critter I looked at years ago. IIRC it was a 2 - 3 " diameter star wheel mounted in the cab in the operator's line of sight. As cable was played in or out, the star wheel rotated.

I think the load line ran between a couple of small wheels which in turn drove something like an old style speedometer cable.

Anyone here know the proper name for this thing or where I might be able to find one ?

Thanks in advance.

Wire rope movement indicator ??