Quote:

Ok,i'll order that one.What is the setting on the trans for,fine tuning?




If you mean the clocking of the pinion housing....no. Its because pinions with more teeth are larger than those with less. The 'center' hole in the housing is not centered, for that reason. Correct clocking will ensure correct tooth engagement with the worm gear portion of the output shaft of the tranny.
It has no 'fine-tuning' effect whatsoever.