I was about to post a new thread when I read this. My 904 trans was rebuilt by hauser racing before I bought the car, but when I bought it the kick down linkage was disconnected. I connected it but it didn't kick down. I put an extra bolt in the slider, effectively shortening the slider, and it kicked down lovely. After fighting to fit headers (now removed!) I noticed it was changing up really late - 35+ into 2nd & 65+ into 3rd, but I didn't notice this before so I assume I bent something. Changes were quit harsh as well.
I have now adjusted the linkage, and it changes lovely 28 into 2nd & 38 into 3rd, but it doesn't kickdown

I did notice when I had the linkage off that the arm on the box seemed to have a bit of free play when you pushed it towards the frot of the car, but the manual says it has to be at its stop to operate correctly? Adjusted like this, there is no way it will achieve full movement to full kick down position - HELP!!
So i have a few questions;
1) What is acceptable shift speeds?
2) Which adjustment is critical, trans arm at it's stop when throttle closed or lever at it's full stop with throttle fully open? Or both?
3) I have noticed that my linkage has new ends grafted on so i am not sure there is enough adjustment, does anyone have a spare they want to sell me?
Cheers
Kev