@FPV MIC @MxFiver @Corsa thanks for the replies. I ended up contacting Thrustmaster customer service and I ordered a replacement spring directly through them.
I cant justify ordering the load cell with a $170 price tag just to brake (as good as it may be) when I could buy a brand new set of pedals for that money. The stock spring felt fine so I'm just going to continue to roll with that. Thanks again.