Few questions for the techys out there.

Will the pinion on a F16 box come of seperate. or is it part of the shaft.

Also i currently have a f16 with 3.74 fd on it. pinion has 19 teeth and crown wheel 71.

But im looking for a 3.94 . which the pinion will either have 18 teeth or the crown wheel will need to gain 4 teeth to 75.

ive got a staight cut gear kit built into a f16 (quaife) prob is its got a 3.55 fd on it and quaife arent very helpfull about supplying a pinion ect ect. so im stuck at the moment. hence i need these few questions answering.

if u know anyone who could help on this matter or anywhere that could supply the bits im after then that would be great

thanks all

chris