FLYwheel ring gear

[JonC]

I just ordered a new ring gear for my 40 P/U. I have battled with a bad solenoid, a new style bendix unit on a 12 volt starter and lastly a mini starter, all have made the noise from hell when turning it over. So I finally bite the bullet and decided to remove the trans , rear end and get a new ring gear put on, Before I screw this up how do I tell which way the gear goes on? Anyone done this and how difficult is it,