FDR - How to work out

[zackmitchell]

Hi Guys,

Trying to work out final drive ratio's for an MI3.5 and thought it was a combination of motor pinion and spur gear divided, but when looking at the provided set up sheets and using this formula its a very different answer to what the set up sheets are saying the FDR is.

Can anyone shed some light on my blonde moment?

Thanks in advance

Zack