My trigger was the same way. The spring I had actually fit perfect in the hole where the factory spring threads in. Just sitting in there as it wouldnt thread like the factory one does. I then uses a pair of pliers and bent the spring (where I cut it) out straight so it fit in the hole on the safety tang. Then just match up a lighter spring that fits where the factory one does on the trigger blade. You may need to stretch the spring a bit to get a snug fit.

http://www.shootingtimes.com/2010/09...s_savage_0813/

The same trigger I have is in the link above