I'm getting my parts ready to send my motor away and I'm having trouble with the main gear train from the crank to the cam shafts.

I know the front is different to the rear but how can you tell the difference? Are they stamped or something?

Pretty sure that they are marked dude..

I'll be taking the dog for a piss up the garden when she wakes up...I'll dive in the garage as I have a set of heads in bits on the bench. The rear is all out so I'll see what markings are on it.

Dude - they are marked F and R on the top of the sideplates.

Should be no worries. My wank phone camera doe snot pickit up very well...but the painted mark is there.