Mines a TKO. I have never been to a class or taught the right way to work on these trannys so Im certainly not an expert.
I'm not aware of anything in the trans that could be considered a stop like the shifters have. I'm sure when the shift rods get to a certain point they wont move any further, but that may be after the fork bends or you've over extended the slider. If youre doing alot of powershifting I would recommend setting the stops on the shifter just as the instructions say. Then check it periodically cause as the shift pads wear down you will need a little more travel to get the same slider engagement. If youre not powershifting, dont worry about it.
My problem was, the shifter was hitting the stop before the 3-4 slider was engaging fully in to third. It would go in fine driving around the pits, but on the track it would grind every time.
Another problem I had was hitting fourth. After realizing that the back of my elbow was sore and bruised I figured out it was hittting the armrest when pulling fourth. Since I have taken it out I havnent missed fourth once. My elbow feels a whole lot better too.
Andy