d50 pinion angle

does anyone know what the stock pinion angle of a d50 is? its five speed one piece drive shaft if that matters. i wana say its 3.5 or 4.5 i guess i should have wrote it down. thanks.

There is a really good write up on this on airridetalk.com if you haven't read it already. Tells you how to figure it all out, check it out.