This may help you, it?s a little trick I learned from my buddy. I can only attest that this works like a charm on the plastic guide rod. I would imagine it would work with the SS one too.
1 ? Get a regular drinking straw. Cut it in half. Then take one of the halves, and make a slice lengthwise
2 ? Insert the straw into the guide rod hole from the outside. Slicing the straw lengthwise in the first step allows the straw to fit through the hole easily.

3 ? With the straw in the hole, slide the guide rod and spring into the open end of the straw

4 ? Push the guiderod with the straw through the hole. The straw will guide the guiderod ( duh ) right through the hole. No wiggling, no fuss.

5 ? Pull the straw out of the hole from the outside.
6 ? You?re done! Should take you about 4 seconds to get the guide rod in.
Like I said, it works with the plastic rod. I hope this helps.