Hey guys

So I am in the process of refitting my TC31
I purchased a Prather 8020 flex cable which I believe is correct apart from trimming for length
However when I went to give it a test fit not only does the drive dog not fit over the stub shaft but the cable itself just will not go anywhere near fitting the stuffing tube.
The stock cable fits snugly.
I realise I need to grind a flat section down for the drive dog set screw.
What am I missing here?
Do I need a new teflon liner or what
Cable packet reads as follows 3/16 x 12 flex cable with 3/16 x 3-1/8 stub shaft.

Thanks for the help [8D]