For your tranny:
Put final 1000 away from full left.
Put max speed all the way to the left
Put final all the way to the left
1st gear- almost all the way to the left.
2nd gear- about 2/3 of slider
3rd gear- about 3/4 of slider
4th gear- play with it, should be almost all the way to the right
5th and 6th are all the way to the right.
As for suspension, that's mostly trial and error. Hope this helps! 👍