B&M quicksilver

I can't remember which one but I'm not sure I think your problem might be between Park and reverse. There is a lot of room for I'm not sure this is the part for the Chevy or for the Mopar. that one has a long distance between reverse and park and one has just a normal one more click. I think it comes with a pin...

I'm not sure what you mean. The instructions say to move it all the way down to low gear which is all the way back on the shifter lever. And then set your adjustment there. But no matter what I do I can't get it to go in the shift lever hole is not enough cable length.