So, I really like the handling of the "trapper" 30-30 I picked up this year. I had heard about the Wild West trigger that you can install yourself, and, when they went on sale, decided to try it out. I also picked up the one-piece ejector, not because I needed it, but because it was the only part I had ever had fail on my other Marlin 336.
Here's a link to the parts:
http://www.midwayusa.com/browse/BrowseP ... andId=1800
Pretty much my review is this: if you hate the Marlin trigger-flop, and want a good, consistent, lighter, hunting appropriate trigger, buy one now.
It didn't come with installation instructions, but they are easy to find on the web. It took about 20 minutes, and there is no comparison at all between my "trapper" 336 and my "regular" 336 with the stock trigger still in it.